Using “stick” compounds you will need a dedicated wheel for each one. Contamination between the coarse and finer sticks will be a problem.
My method for keeping those properly identified was to use a marker of appropriate color for each and start the wheel then touch the marker near the center.
You will also need to “rake” the wheel from time to time as it gets a bit gunked up and will need cleaning.
I probably should clean the ash pans on mine but, I only think of it either when it’s in use or the dead of winter when I really don’t feel like it.