OK, I'll confess that I picked up a "glove radar" off of ebay for fairly cheap. I'm impressed with its consistency. But I understand the concerns here about hurting a youngster who is pitching, so I don't really do much with it.
I found it in the garage the other day and thought I'd see if it can measure bat speed. So I held it up in front of my youngster and had him take a few cuts... lo and behold, it seemed to give a pretty reliable speed reading.
Do you see any value in "gunning" a youngster to check his bat speed? Maybe a way to see if a switch-hitter (which he is) is getting similar power from both sides? Or a tool to help pick out an optimum weight/length of bat (how would you do this)? Or to figure out if a new cue is a step forward or a step back? Now I know that a focus on batspeed is probably going to lead to long, draggy swings (but maybe the tool can prove that a shorter, 90% effort swing has as much batspeed as all-out?)
My guess is that batspeed is of very limited value; otherwise we'd see the measurement of batspeed used a lot more in the pros, perhaps even as a scouting tool. What do you think?