Belt grinder advices

[C-Bag]

It used to be that it was a given that you would always put a crown on the pulleys on a belt grinder but the one I have has no crown on either the drive or takeup pulley's. What I notice with this is the belt is more uniform in its usefulness. It doesn't have the slack edges that a belt on a crowned pulley would have. Mine also is tracked with what I think is ingenious method of twisting the take up wheel to track with. Personally I don't use long belts and use the disk sander more than belt sander and don't leave the belt on mine all the time so what do I know ?