My daughter has a composite bat that dad paid $ 300.00 for, sure she would hate to give it up, but if there is a problem with injuries because of the composites/hot bats then it is what it is. The RT bats are just as hot as the composites so if one is banned then the other should be banned.
There is a significant performance difference between composite and aluminum bats. Check out the research article on this topic at: Are Composite Bats better than Aluminum Bats?. What is important to note in the finding is that the aluminum bats consistently were under the ASA 2004 max of 98 MPH where as composites were at or above the standard. End of the day, however, it really depends upon the batter. My DD uses the RocketTech and can drive the ball over 185' fences. She has tried her teammates composites (CF4) and the difference in her hitting distance is negligible. I have another power hitter on my team that can drive her balanced CF4 150 - 160' consistently but can only hit the end loaded RT 130 - 140' max.
I have been told the 2004 RT was the hotest legal bat for FP.