I had another student use it for the first time today... She averaged 52 with the occasional 53 for the first 20 min of upper body work. We then started on the drive. I pulled out the queen, drive off about 20 times without a ball or glove. She started understanding the sprinters posture. By the end of her lesson (1 hr, 20min) she was averaging 53 with several 54 and hit a personal best of 56 once!