Another update: Set the tripod up at last nights hitting session and set the measurements up to record ball flight and was pleasantly surprised on how efficient everything was and how the data was applied to each hit. After the session we went back home and went over the data and videos of hits and my DD actually reacted positively to everything. We looked at her good hits and her poor ones. I'm impressed with it and she was excited about it and pointing things out with different swings . So big fan so far. if DD is excited I'm excited.. Will note this though out of 118 hits she took, there were two that I believe may have given bad readings. I know she hit them well but I don't believe she can hit 347 feet and 326 feet. the rest all seemed plausible.