I'd fear that the expanded metal over sheet would capture mud and other crud more than I'd care for. If you go with expanded metal, do without the sheet underneath so that stuff can fall through.I believe it's the maker of the shoe in the picture, Willie.
And indeed Burn, mine has diamond tread cast into the counterweight.
Expanded metal over sheet would be dandy as well, expanded alone should work, perhaps even better than diamond.
My feets can slip around if I'm not paying attention and we're working in mud/wet conditions.