My ChemD is one of the most potent things I have ever smoked, I've been smoking for over 20 years. I also have a really strong Black Afghan. I also have a cross I made called Doomsday. It is a Purple Urkle x SSH that leans to the indica side. It is pretty potent too. All these strains are 1 or 2 hits.
Don't know how you would get it, but I got some GUSH#9 from Harborside that virtually eliminated all brain activity. It left you waking up going "whoa...I barely even burned the top of the bowl...what happened."
According to HS it is purple kush crossed with pure afghani, then backcrossed to PK.
K, wrap 'em up... I will take them all... ('cept for that $500 per seed crap.. I don't care if one bowl flies me to Tahiti, it ain't never gonna happen....)