I can't speak for the Revs III but i had the Revs II and did not care for it.
I now have a Moro Pro-Release Extended and I really like it.
What I like better about the Moro over the Revs II:
more comfortable
better fit due to adjustable padding
rebuild kit available
What I liked better about the Revs II over the Moro:
tilt adjustment was a better design (easier)
the color but that doesn't really count
As far as if it will increase your revs or not.
If your wrist collapses then it will help.
Since I started using my Moro I have seen jump in revs from approximately 200 to 320-340 part of that is the support and part is a better fitting grip that allows me to have a very relaxed grip.
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