Perhaps the light-weight pro-yo/pro-fly is the answer...
ju meeen, lika dis, perhaps?
Just finished these the other day.
Good job BTW, and don't give up on the first one - balancing a P213 is one of the more frustrating things i've ever done. Before you go to balancing putty, and if you haven't glued the stinger in, twist it little by little (some brain lube helps) and test with on-string boomerang untill it is at it's best. If you want to get nuts, do this for each of the 6 possible ways the bolt can be positioned relative to the yo-yo half, then do the putty. I havent' had one I couldn't balance yet that way.