Used this tool for few months now. My daughter has gone from averaging 42 mph to 52mph in few months by improving her mechanics. The radar readig changes wiht the direction of the pitch by a few miles, so that sometimes need to be considered, but when the ball is right down the middle the accuracy is good and the reading is the best. Too bad that my daughter best pitch is the inside fastball, in that case you may see 3, 4 mph loss in reading due to cosine effect i believe.
Pros: Cost effective and easy to use
Cons: Reading may be affected by glove moving and cosine effect may be large
This review was written in the old system and had content requirements that are different than reviews written today.