hiya doc
iv done 3 gows using cannaboost, 1 with bloombasic and my current grow using hammerhead pk9/18(instead of boost)
current grow is the best so far. much bigger buds without splashing out on any boost and just using hammerhead from week 2 or first sign of pistols till week 7 (on a 8 week cycle)
il never pay silly money for a boost again
the problem with boosts is that you dare'nt not use them incase they do make a difference, but you never really know if they do make a difference or not untill you try a grow without using them.
iv just tried it for the first time and glad i did. my findings are at £60 for a bottle of cannaboost is just a blatent piss take as iv just found out
hope this helps doc