I'm growing AK-47 from serious seeds. So far i use 3 gallon soil pots, I top them a few times and let them veg from clone for at least three weeks. I usually get at least an ounce or two dry per plant and the flowering time is nine to ten weeks under my 600hps. I'm just a newbie so I have a lot of learning to do yet, but i think eventually i may get over three ounces a plant once I get them dialed in properly. I can't wait for the spring to see what they will do outdoor as well!
Serious also puts out a plant called Chronic. It is supposed to be some heavy weight producing bud that still has good bag appeal. Check both of them out at The Attitude Seeds. I ordered from them and had no problems plus it came in a week!