Big Devil FAST Version vs Killer Kush Fast Version: Which Feminized Seeds Should You Grow?
1. Introduction
Big Devil FAST Version and Killer Kush Fast Version are both feminized, fast-flowering hybrids from Sweet Seeds. They appeal to growers who want a relatively quick turnaround without dealing with male plants. If you are choosing between these two, you are likely weighing ease of cultivation, potential strength of effects, yield, and how each strain might fit your grow space and goals.
This comparison breaks down the available information for each strain and highlights how they differ in practice, especially for beginners, growers focused on yield, and users seeking stronger effects.
2. Quick Comparison Table
| Feature | Big Devil FAST Version | Killer Kush Fast Version |
|---|---|---|
| Breeder | Sweet Seeds | Sweet Seeds |
| Seed Type | Feminized | Feminized |
| Genetics | Big Devil Auto crossed with a mystery strain | OG Kush bred with Auto Indica |
| Type | Hybrid | Hybrid |
| Flowering Time | Not specified | About 7 weeks |
| Yield | Not specified | Good |
| THC | Strong | Not specified |
| Flavour / Aroma | Not specified | Sweet and tangy citrus with hints of chemical, diesel, and kush |
3. Big Devil FAST Version Overview
Big Devil FAST Version is a feminized hybrid from Sweet Seeds created by crossing Big Devil Auto with a mystery strain. The result is a photoperiod variety designed to finish faster than standard non-auto Big Devil lines, while retaining much of the character associated with the original auto genetics.
Because it is listed as having strong THC, Big Devil FAST Version is positioned for growers and users looking for more potent effects rather than a milder experience. The exact effect profile is not specified, but growers should assume that this is not necessarily a gentle option, especially for those with low tolerance.
Details such as flowering time, yield level, and flavour are not specified in the available data. However, as a FAST Version hybrid, it is reasonable to expect a shorter overall cycle than many regular photoperiod strains, which can appeal to those who want to harvest more quickly or run multiple cycles in a year.
With feminized seeds, you avoid the need to sex plants, reducing the risk of accidental pollination. For a first grow, that can simplify the process: you focus on environmental control, nutrition, and basic training rather than plant sexing.
Big Devil FAST Version may suit growers who:
- Want a Sweet Seeds hybrid with stronger THC content
- Are interested in a fast photoperiod alternative to traditional Big Devil lines
- Prefer feminized seeds to avoid males
4. Killer Kush Fast Version Overview
Killer Kush Fast Version is another feminized hybrid from Sweet Seeds, bred by combining OG Kush with Auto Indica genetics. It is designed to deliver Kush-style traits in a shorter flowering time.
The standout specification for Killer Kush Fast Version is its flowering time of about 7 weeks. This relatively quick finishing period is attractive to growers who want a faster harvest or have seasonal or legal constraints that limit their outdoor window.
Yield is described as “good”, suggesting that, within its fast-flowering category, it is expected to perform respectably in terms of production when grown in suitable conditions. While no specific grams-per-square-metre figure is provided, this gives at least a general indication that yield is a consideration in the breeding of this strain.
In terms of flavour and aroma, Killer Kush Fast Version is characterised by a sweet and tangy citrus profile with distinct hints of chemical, diesel, and traditional kush notes. This makes it appealing to those who specifically appreciate classic Kush-style flavours combined with a brighter citrus edge.
Although the exact THC percentage and effect description are not provided, its OG Kush heritage and name suggest that it is bred with potency in mind. As with any strong hybrid, new users should approach dosage carefully.
Killer Kush Fast Version may be a good fit if you:
- Want a fast-flowering OG Kush-based hybrid (around 7 weeks)
- Value a clear flavour profile with citrus, diesel, and kush notes
- Prefer feminized seeds and a “good” yield potential
5. Key Differences
General Comparison
Both Big Devil FAST Version and Killer Kush Fast Version are Sweet Seeds feminized hybrids designed for faster flowering than typical photoperiod strains. The main general distinctions are their lineage and the details that are actually known:
- Genetics: Big Devil FAST Version comes from Big Devil Auto crossed with a mystery strain, making it less defined in terms of heritage. Killer Kush Fast Version is more clearly rooted in OG Kush crossed with Auto Indica, appealing to growers who specifically want a Kush-oriented hybrid.
- Available data: Killer Kush Fast Version has clearly stated flowering time (about 7 weeks), a “good” yield indication, and a defined flavour profile. Big Devil FAST Version has less publicly available detail but is noted for strong THC.
- Positioning: Big Devil FAST Version leans more toward those explicitly seeking higher potency, while Killer Kush Fast Version emphasises speed, Kush flavour, and a balanced production level.
Which Is Better for Beginners?
For first-time growers, information and predictability are important. Killer Kush Fast Version has two advantages in this respect:
- Clear flowering time: Knowing it finishes in about 7 weeks allows new growers to plan their schedule, estimate harvest windows, and better time tasks like flushing and pre-harvest preparation.
- Yield indication: Described as delivering a “good” yield, Killer Kush Fast Version gives beginners a baseline expectation that, if their environment is dialled in, they can achieve satisfying production.
Big Devil FAST Version can also work for beginners thanks to its feminized nature and likely faster-than-regular flowering, but the lack of specific data makes planning slightly less straightforward. New growers who are comfortable with some uncertainty may still enjoy it, especially if their priority is strong THC content rather than maximising predictability or flavour.
Overall, based on the information provided, Killer Kush Fast Version is generally the more beginner-friendly choice because its timeline and yield expectations are clearer.
Yield Comparison
The only explicit yield information in the data is for Killer Kush Fast Version, where yield is described as “good.” While this does not give an exact figure, it indicates that production has been considered and promoted as one of the strain’s strengths within its category.
Big Devil FAST Version does not list a yield level. Without this data, it is not possible to say whether it tends to produce more or less than Killer Kush Fast Version. Growers who are heavily focused on yield and want fewer unknowns will likely feel more comfortable with Killer Kush Fast Version due to the available guidance.
If yield is your primary concern and you value predictability, Killer Kush Fast Version has the clearer advantage based on the provided information.
Effects Comparison
Specific effect descriptions are not provided for either strain, but we do have a few clues:
- Big Devil FAST Version: Marked as having “strong” THC. This suggests a more intense experience, so it is likely aimed at users seeking more powerful effects rather than a light, occasional-use profile.
- Killer Kush Fast Version: THC content and effect profile are not detailed, but its OG Kush background traditionally corresponds to robust, noticeable effects. That said, without explicit data, any comparison of intensity is speculative.
For users specifically looking for strong effects and willing to prioritise that above other factors, Big Devil FAST Version is the more clearly positioned option, since its strong THC is directly stated. For those who want Kush flavours and potentially strong effects but do not need explicit THC information, Killer Kush Fast Version remains a viable contender.
6. Which Should You Choose?
Your best choice depends on your priorities as both a grower and a consumer.
- Best for first-time growers:
If this is your first grow and you want a clear idea of timing and reasonable yield expectations, Killer Kush Fast Version is the more practical option. The 7-week flowering time and good yield description make planning simpler. - Best for strong effects:
If your top priority is potent effects and you are comfortable with fewer specifics on yield and timing, Big Devil FAST Version stands out thanks to its stated strong THC. This makes it appealing for experienced users or growers catering to those who prefer more intense experiences. - Best for flavour and aroma:
Flavour details are only provided for Killer Kush Fast Version, with its sweet and tangy citrus profile layered with chemical, diesel, and kush notes. If taste and aroma are important to you, this strain has the defined profile. - Best for yield-focused growers:
While no precise numbers are given, only Killer Kush Fast Version is explicitly described as offering a good yield. For growers who are planning their space and resources based on production, this is the strain with clearer expectations.
7. Final Thoughts
Both Big Devil FAST Version and Killer Kush Fast Version provide fast, feminized hybrid options from Sweet Seeds, but they cater to slightly different priorities. Big Devil FAST Version highlights strong THC and a Big Devil-based lineage, making it appealing for users who want powerful effects and are less concerned with detailed cultivation data. Killer Kush Fast Version, with its defined 7-week flowering time, good yield potential, and citrus-diesel-kush flavour profile, is better suited to beginners, yield-focused growers, and those who value a clear Kush-style taste.
If you want maximum clarity and ease of planning, Killer Kush Fast Version is the safer pick. If your main goal is seeking out stronger effects and you are comfortable working with fewer specifics, Big Devil FAST Version may be the more interesting option for your next grow.
