My Daughter swings a 2018 PXT. That thing is a tree trunk compared to most of the other bats she's tried. If you aren't strong enough the PXT will swing you, you aren't swinging it. It sounds like your daughter has taken a few cuts with it and that will give her a better gauge to assess other bats, sometimes it is hard to really know what the differences are if the range is small, having a Bustos -13 and a PXT -10 gives your analysis some nice bracketing.
I would add that a girl's height and weight don't always tell the story on strength. I've seen slightly built girls with good core/wrist/arm strength able to swing a heavier bat successfully, and bigger girls struggle to maintain swing fundamentals with heavier bats, so best thing is to try several and see what fits your daughter best.
I would add that a girl's height and weight don't always tell the story on strength. I've seen slightly built girls with good core/wrist/arm strength able to swing a heavier bat successfully, and bigger girls struggle to maintain swing fundamentals with heavier bats, so best thing is to try several and see what fits your daughter best.