You don't dress the sides of a wheel. You use the dresser to re-form the cutting surface to the flat that it was originally by removing material from the wheel.I will and I have that item. I guess I use that on the flat part of the wheel not the angled part of the wheel which has formed from a year of sharpening blades?
None here. I do use the 5" flap discs in my angle grinder from time to time, and have flap wheels for my Walter Linemate linisher. On bench mounted equipment, my "soft" wheel experience is mostly with Scotchbrite wheels (these are AWESOME!!!), but also Cratex (rubberized stone), and all sorts of buffing wheels, but never flap wheels.