As of today the OEM Bridgestone tracks are at 1230 hours. The tread is doing ok, even with a few deep cuts, but the insides are getting pretty bad, including the sprocket contact points. There's no rubber left there at all. I'll most likely run them until they die, which could be tomorrow or later this summer. The sprockets went past the point of functioning properly at 1205. I think the sprockets got a bunch of excess wear running in mud and wet sand this Spring. I'd post some photos of the old and new sprockets, but Verizon isn't cooperating. Basically, they were worn to points. Since I actually use reverse instead of spinning around at every opportunity, there was no "hooking" of the sprockets at all.
When I change out the tracks my plan is to get new sprockets and keep the semi-worn ones for later on.