I did a very light Gravity regimen(only 3 days vs. 7-10 days recommended dose) and noticed increased resin production. Buds turned out nice and tight, but not rock hard as advertised. I read a lot about the stuff potentially burning plants so I ran it with plain water. Next time I'm going to run it for the full 7 days with nutes and I have a feeling I'll really see what the stuff can do then.
big bud is basically hammerhead 9/18 except doubled up.. same ratio basically.. dunno why you;d want to run both together... also big bud is supposed to be used during weeks 2-4.. gravity is to be used for 1 5ml watering or 2 consecutive 2 1/2ml waterings around 3-2 weeks before the chop.. also u lower all your nutrients to half strength at least when u use gravity...
bud candy is not the same at all as big bud... bud candy can be more comparable to sweet... its a carbohydrate.. bud candy will make your room smell great and works great.. use it thru all flowering cycle.. 8ml per gallon.. big bud is a crazy ratio such as 1-19-37 or something..
also someone said they swear by that product that is 10-30-20.. well the problem i see with that first off is the nitrogen... 10 is way too much for flowering.. too much nitrogen lowers yield... *-30-20 is not the right ratio... too much p and not enough k will affect flavor adversely, and isnt the correct ratio for maximizing bud size and yield... the correct ratio is supposed to be around *-1-2... all the way up.. hammerhead 9-18 is *-9-18... big bud powder is just double that... i believe hammerhead is no longer being made and it is now just big bud..
dont run gravity for 7 days.. its not recommended that way.. it says either 1 full dose or 2 split doses consecutive on the bottle... and it says very specifically MORE IS NOT BETTER... gravity tricks your plant into thinking its at the end of its life cycle and matures your plants/buds... it makes your plant kill off the leaves by sucking up all the energy stored in there, and makes the buds tight and hard... if u use it at the end of a run where u used big bud your buds will be fat hard and heavy... using bud candy they will be super super super sweet... gravity doesnt increase resins... but purplemaxx/snowstorm does.. snowstorm would be best, purplemaxx was the experiemental early release.... the reason for gravity and snowstorm are if u are using their other product being bushmaster (which will decrease yield, but stunt height growth) gravity adds the weight u lost back, and snowstorm increases the sugars/oils... but if u arent using bushmaster u will get about a 50% increase in crystal content with snow storm.. and gravity does its job at hardening...