I am looking for some input on a new bat. My DD is moving up from 8u coach pitch TB to 10u fastpitch TB. She has been swinging a 30/20 easton stealth great against coach pitch. Should I take her down to a 30/18 in fastpitch. Im afraid she may struggle to get the 30/20 around quick enough against a fast pitcher. She's 4'6, about 70 lbs. Also,any input on the new miken freak nxt light?