I suspect that Out in LF is answering a different question.
In 2012, USSSA will allow players in 14U tournaments/leagues to use bats that have the
new USSSA BPF 1.15 marking. Of course they will also allow bats which are wood or BBCOR certified.
So I expect that many USSSA kids will use big barrel (2 3/4") bats in 2012, just as they have in the past. A bat which provides a BPF of 1.15 will provide considerably more pop than a wooden or BBCOR bat. The kicker is that not many bats are currently available with the new sticker. The new sticker is intended to ensure that the bat isn't easily rolled or improves with use.
However, I doubt that the market for specifically -3 new USSSA sticker bats is big enough to interest manufacturers. More likely they'll just make -5 or -7 drops. Presumably you'll be able to buy -3 drop bats which carry the new USSSA sticker, but my guess is these bats will actually be manufactured to BBCOR standards.
For 2011, any bat which carries the old (or new) USSSA sticker is legal (unless it gets put on the banned list--I don't think that there are any banned baseball bats) for 14U.
http://www.usssa.com/usssa/uss...llBatPerformance.htm 2011-12 New Baseball Bat Marks Grandfathering Rules Announcement.pdf