DD started lessons last night and the PC gunned her at 48,48, & 47. She just turned 13 and she was visibly upset since she was gunned last May @ 52,51,&50. She pitched to middle of July and shut it down up until mid September and just threw about once per week. My question is this normal she would drop 4mph from last year? During lessons she will pitch 3-4 times per week and this is her 3rd year of lessons. Any insight would be greatly appreciated.