My DD swings a 34 drop 8 in college and has since first year 18U. That said, a vast majority of her team is swinging 33 drop 10's. I did an unofficial poll amongst 15 or so former players of mine that are playing at the college level from MM D1 through D3. They told me #1 bat length and weight on their team was 33/23, second was 34/25 and there were a few 34/26 and 32/22's thrown in for good measure.