Yea I don't think the SR71 PK is the one everyone thinks it is, I have it and I smoked some Purple Kush grown by a family friends nephew in Mendo for 15yrs and the shit made me puke after smoking a bowl to myself and I'm not a light smoker! The shit had my heart racing all fast and got me sick! I had a 1/4 last me all month cuz I was afraid of the shit! To this day no purple cut has compared to it and it was completely purple the buds were almost grey... I'm hoping to take a trip up there to meet the guy this tear and get some of his cuts cuz he's one of those oldtimer's that don't share his genetics but being a family friend I think I'll get my hands on it and make some crosses!!!