From time to time I have struggled with dust and other things in my bowl final finish giving me a less than smooth finish. Im thinking of going the finish, steel wool, and buffing route. What size of bowl buffs would you recommend for 8-10 inch bowls? I see 2-4 inch sizes. Also I see that a slower speed motor, 1725 rpm, is recommended for 8 inch buffing wheels. Would the regular 3450 rpm motor be better for the buffs because of their smalled diameter? Also would you use the buffs for the outside instead if the wheels as not to have to change them out? Your comments and other ideas would be appreciated.