According to what ships with Rockboard, Pedaltrain, etc... it is usually cut/setup for hook on the pedals and soft stuff on the board, so that's how I've always done it, and, as mentioned, it doesn't pick up as much debris.
I've used the heavy duty stuff, but it seems like total overkill.
Not sure why you care which is "rougher and tougher" on the board, I could argue that you will do more damage to the exposed hard stuff, but either way, I doubt anyone is standing on the exposed areas of the board.