Quick question about the GS Traveler soles. How well do they hold up? I typically add at least toe taps to my leather soled shoes as I wear the toes a little faster. If I have oak bark tanned soles I let it ride as is, but if I know it won’t last long (i.e. Allen Edmonds) I throw on a thin vibram half sole. Any thoughts on how long the butyl leather soles last?