Hi everyone. My daughter is turning 10 at the end of October. She plays 10u travel ball. Looking to upgrade the bat. She is 15 in. across shoulder to shoulder. Her height is 4 ft. 9 in., about 100 lbs. Figuring a 30 in. bat. Not sure about bat weight. Seems like most folks here recommend a good used bat. Any particular favorites for her age as well as recommended used bat sites. Thanks for your help.