I have a set of faux (resin) Stag grips on my Ruger Vaquero, they areprobablly the best first purchase that you can make! The ribs of the Stag finish fit my dingers as though they were fitted to my own hand! The hold is totally slip-proof!
Soon as I added them, control of the powerfull .357 Magnums was no longer an issue. They are thicker and fit my large hands well. My Groups quickly started to shrink as I got used to the new feel of the Stag's!
BPDave