Brake shoes

The brake shoes on my bike were looking very thin, but when I removed them to replace them yesterday, they still mic'd at just a hair over 3mm, which is the replacement point. I'll leave them in for a while longer. It looks like they went in somewhere around 11,800 miles, and I'm at 14,500 now, so probably 3000 miles on a set. Of course, the ones I'm replacing it with are generics, not Avids, so they may wear differently.