Thanks everyone for the feedback. I bought her two bats a 33/20, and a 33/22. Now the trick is getting her to use them she likes the heavy bat.
"The trick is getting her to use them"?? Let me tell you that a 2oz difference is huge.
IMO this has the potential for messing up a swing entirely. She should learn to master 1 bat size. When your DD gets into a slump(just a matter of time) she could mentally go nuts trying to figure out whats wrong....going back and forth betweeen the two hoping one will work. 2oz's WILL make her timing different, ask anyone who knows batting. Please take that 33/20 away from her, since you can't return it keep it for yourself to use when you 2 play/practice in the park.
I;ve been coaching 10yrs now, seen every type of body build, never ever have I seen a high level TB player use anything heavier than a drop 9. Most use drop 10's and the tiniest girls use drop 11. Get the machoism thing off the table where bigger is better. Sure your DD can blast those 12u speed fastballs dropping in over the plate.....enjoy that fun! Soon she will be facing a whole new level of play where her 'longball' hitting style will fade a bit. What worries me here is whats happening to her mechanics right now if she's instinctively swinging for the fences jumping out of her shoes every at bat.....and probably has an uppercut swing. Since your DD's a power hitter please have her focus on linedrives(a hitting coach wouldn't hurt)....homeruns will come. This will make her future transition more enjoyable for the both of you.