nobody knows the real genetics of the GDP, as any strain crossed with GDP would have phenos that would make you think twice if it was even a trait of a gdp genetics, i cant remember where i have read it either at high times or on breeders seeds info, or maybe here on this forum. i would love to get gdp seeds but i aint fighting for nothing and might as well try other strains like querkle, deep purple, blackwater og, the purps so many strains out there now that could resemble the GDP and even danker if i might add