Pair early and often between meals.

I have used many methods and I have 400g males locking this year already. Never hurts to throw a "Pro-male" shed in the tub when you pair a young male. I always pop younger males before I toss them in with a female. I have thrown a few younger males in a tub together with a 800g Pro breeder and immediately paired after that.

Both my 1.0 Bananas are May/June 2013 hatches and at 400g+ they are locking with plugs. I had a 2012 Enchi Fire locking at 380g with plugs last season. He's a Pro now.

http://ball-pythons.net/forums/showt...reeding-thread