Is it harmful for a girl(12u) to hit baseballs with a small barrel baseball bat. I have a pitching machine that throws both baseballs & softballs but it's really a pain to make all the changes from baseball to softball. I throw underhand now from aprrox 20 ft but I still don't throw anywhere near what she see's in the games for the most part. I was just wondering to get her used to seeing faster pitchers would feeding her some baseballs at a greater speed be of any benefit. I know it would be a different angle as far as release point. I figured if she could hit a baseball at some speed a softball would look like a beach ball coming in. Or would that do more harm than good. I have looked at some of the cheaper softball only type machines but really didn't want to spend the extra cash for another machine. Thanks for the time