Yes, Chronic is from Serious seeds. It is a mix of NL x (NL x SK#1) x AK-47. Short bushy plant(3-4' high at best) with multiple tops. Haven't grown out this cross yet. Not too sure about which Trainwreck it is. got it from a friend. When I described it to some folks, they said it was the Arcata. The P-91 was the Poway boys, class of 91. Most went to jail. Supposed to be a NL cubed or something like that. Will be very indica looking. Basically all the strains are 8-9 weeks. The C-99 mom went 53 as did the AK-47. I usually left them till 56 with all the rest. The PD dad and the Chronic were 9 week strains. All depends how you like it.