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Originally Posted by MTH:
"At the youth level for the bats that we studied, even though there was a trampoline effect, the loss of momentum overcompensated for it so no matter how hot the trampoline effect was, the bats were so light they still were not outperforming wood substantially," Crisco said.
HERESY! 
I would have rather seen the study done with the 12U group where the bat performance, and danger, is much more noticable
It's not clear from the article what level of hitters they were using either. The difference between 15u rec hitters and 15u elite hitters is going to be enormous, for instance. Also, even if the max performance from wood and non-wood is the same, non-wood mishits are going to be much closer to the max than with wood.
Weird study, not well explained in the article. So many other factors involved in a baseball swing.
I will say this, if you think an Easton XL1 -5 and wood bat perform about the same I have some stuff to sell you.
I would like to have seen the actually breakdown of what kids swung which bats etc...
In this study they compared the BBCOR of BBCOR, BESR and WOOD.
http://physics.wooster.edu/JrI...aabe_Web_Article.PDF
They found: the BBCOR of BESR is 15.5% more than wood. The BBCOR of a BBCOR bat is still 10.7% more than wood.
Basically they measured all three bats against the new BBCOR standard.