Working on my third season with Simms Freestone Vibram soles. Very little wear noticeable. I use them with Grip Studs but make sure to install washers with them to keep the studs from leaning.
DZ
Recreational Surfcaster
"Limit Your Kill - Don't Kill Your Limit"
Bi + Ne = SB 2
If you haven't heard of the Snowstorm Blitz of 1987 - you someday will.