Anything from Subzero sucks! I have a real bad taste in my mouth with Subzero made up strains. Subzero, a good "Con" suckin seedsmen.....
Yea I have tried but I just cannot get the temps down that low. And as I said in another thread I am aware that purple buds are more or less just a novelty and imho are not as strong as green buds ( overall ). But I still want some purple if for no other reason than hearing my friends say "Wow, that looks AWESOME!" .You know?
You are on the right track for sure, anything with some Pre-98 in the mix is gonna purple on you without a doubt. And I too have been eyeing the royal purp, lol.im actually gonna try cannacopias bubba x deep chunk and emerald triangles royal purple kush which is black afghan x bubba kush in hope of finding a nice naturally purple pheno.
If you're lookin for a good purp you should try Ace/CannaBioGen's Pakistani Chitral Kush..