Martin - the feet on my poor old titleist stand bag were worn smooth and not working well on anything other than deep turf. Look up Gatorfeet, I am very happy (cheap, universal fit, work very well) and they got me a few more months use until the 2017 "players 5" stand bag comes out. Dont think that Titleist sells replacement feet, I would have bought from them if I saw them available but did not.

This happen to me a few years back. I took two scuffed prov1's drilled holes in them and glued them on. Worked great for a couple years!