I got my porter cable random orbital polisher today. It has the 4 inch counterweight on it and I will be using these 6.25 inch buffing pads:
http://www.sportscarcare.com/scc/product.asp?ItemID=lak-pp6
Do I need to install the larger 6 inch counterweight to use these pads, or will the 4 inch one I have on there now work?