[Newjacket]

But the actual question was " what if a 4th or 5th grade kid repeated?". that means an elementary grade not MS.

I agree with Knighted. If you make a rule about this happening in middle school, the parents that want to give their kid this advantage will just start holding them back at an earlier age. Having a set age like they do now is the best option. Changing that age limit might be an idea or limiting kids to two years of playing for middle school but that would open up a whole new can of worms.