Off with the finger groove... Ruger LCP
While the Hogue grip sleeve made a wonderful difference for me and the little LCP II, that darned finger groove/ridge wasn't working out. Finger grooves just never seem to fit my fingers and I usually end up removing them. The Hogue sleeve with its finger groove was also getting in the way of my draw from a couple holsters.
A 120 grit sanding drum on the Dremel at its slowest speed made short work of the offending ridge. A little finish sanding with finer paper and I'm a happy camper ;)