Im runnin OG and at 5 weeks now. Always at this time the nail biting begins.. "Are they gonna fill in?.. Are they gonna trych out?" My OG's are smaller than other strains at this stage of the game. Smaller flowers, and a lot of leg room between em. I would encourage someone still in this boat to hold tight, give them some carbo load (250 ml/ 50 gal). Super Bud Blaster at about half strength, run em up to 1300-1400 ppm, and relax. They'll be fine. There like 6 different fenos that I know of for OG. If those came from LA, they are probably the Grease variety, which is closest to the original. They are just kinda late bloomers. It is said that they are done at 56 days, i like to give em a few more. One would be amazed what they can do in the final 4 weeks. How'd those turn out btw?