pro touch
Not had it on a pistol, and I know you are from the dark side, but I have had rifles with the system on, and really don't think its any thing worth bothering with, no better than a well stippled grip.
It is definately non slip, so perhaps if you are prone to sweaty hands may be.
My German market price list is well out of date so pointless telling you the price, but that shows the 3D - Protouch grip as the same price as the 3D - Walnut, with the 5D-vario- Protouch about 30% more.
Robin
Walther KK500 Alutec expert special - Barnard .223 "wilde" in a Walther KK500 Alutec stock, mmm...tasty!! - Keppeler 6 mmBR with Walther grip and wood! I may be a Walther-phile?