Yea, heard Tahoe and Fire OG also, in most top 3 OG's. But it's up to you and your taste, if you can, get Tahoe, Fire, SFV, Larry maybe that Ghost too and try them all 2-4 times...
No, there all OG kush's..........Isn't that what your talking about?
Pure kush is different, I read a thread where it's supposed to come from Sugenite or somthing? Maybe from Organkid originally? Im not sure........Id like to f'n try it though, I can tell ya that...LOL!
Everytime you grow any cut of OG, the environmental factors etc will determine how the phenotype is expressed, thus each time your going to find variations in the potency etc especially when your comparing different growers and different cuts.