i have not personally grown joey's C99 but my buddy did andit was the reason i decided to grow c99. joey's is good smoke make no mistake about it but it is nothing like as potent as greenthumbs. i think grreenthumbs might outyield joeys too because but am not sure about thatgreenthumbs gear cost a bit more but are worth it
imo its because doc has a c-99 that is 10 times better than joey weed or bros. grimm.so why pay almost four times the price. Just my $0.02