Timpa, thank you for that info.

Because of what you said, I tried again. This time I put the Pocket Radar behind me (like you had it). I was able to get up to 102 MPH (45.6 m/s) with a stone (probably around 100 g). Although the readout always gives me two or three speeds. I'm not sure what it is picking up. I think one is the pouch moving by on my windup, and the other is the projectile.  I'm really not sure what it is reading when it gives me three speeds (maybe the release cord?)

But the numbers are somewhat unreliable. I had one throw  with a light stone that had to be 110-115 MPH (judging by the 102 MPH throw) that only read 85 MPH.

So, I guess I'll have to try filming it and use frame-counting to verify the velocities using stones.  I did this with the lacrosse balls and it was reading out the correct velocities.

timpa wrote on Apr 30^th, 2020 at 5:16pm:

Timpa,

I tried this, it works really well! Surprisingly, when I use balearic form, I can only reach high 80's mph (<40 m/s), but when I use byzantine, where I really focus on motion of the arm similar to throwing (as opposed to straightening my arm early, similar to how Luis slings), I hit 95 mph several times (42.5 m/s) throwing soft lacrosse balls. My usual with a throw-like slinging motion was >90 mph (40.2 m/s). My elbow hurts today, I threw way too hard, way to many times and didn't warm up enough.

It seems my most accurate at a balearic style target at 20 m is in fact balearic style. I can be pretty accurate at 80mph, but lose accuracy when throwing harder. The shots seem to go a lot flatter using balearic style, when I use a throwing motion, I impart a weird spin to the projectile and it is hard to predict it's trajectory. I'm not sure what my wrist is doing, but it is doing something weird. For some reason, I don't do it using balearic style.