I think that if you buy the same balls at 14 pounds, you won't have issues getting them back to the pocket. If they are too light for you now, you are probably over throwing them. Plus, 12 pounds has a simple core. Most balls don't use their complex core until you get to 13 pounds. Not saying that balls under 13 won't hook, but the complex core in the heavier balls helps.
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HG: 300
HS: 826
Cell, Special Agent, Paradigm, X-Factor, Erase-IT, Spare Storm (black)