Brick: In the past I used both the Revs I and II. I've had two wrist surgeries over the past few years, and I needed something to stabilize my hand while bowling until I fully recovered.
The Revs III is an extended index finger version of the Revs II. Since none of these devices allow for any significant hand/wrist movement (you're locked in), I wouldn't recommend any of them.
If you want support with an extended index finger, check out the Storm StrongArm Plus -- it a more versatile device.
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