Over the past couple of years, I've experimented with lots of different drumheads, trying to find "my sound". I've ironically come back to where I started, double-ply on top and 10-mil single ply on bottom, but that's another story. Anyway, I've got lots of drum heads now that are in very good condition for the most part. I'm curious if there's any reason not to use those on my other drumkits? I'm concerned that maybe the bearing edges for the first kit I put them on would break in the heads in some way that would make them not good to use on other drums, but I don't know if that's really a concern.