Ok, so I repacked my ss coaster hub yesterday and everything seems to be fine. but then I started wondering; is there supposed to be grease packed on the brake shoes? I didn't put any on the shoes because it doesn't make much sense, but then again I've never worked on coaster hubs before. Why would you put grease on a friction surface used to stop the bike? It seems like everyone online is just packing the hubs full of grease.