They work great and last quite a while. So i guess if I was cutting my own, I'd buy some big pads from there and do it. No need to though since he sells the correct sizes for the 'mex.
i have used the beige ones, I have used a more aggressive buffer pad...the grey ones that rick sells are pretty nasty, so just about any "burnisher" type pad will work..
stay away from the colored pads..
oh and btw I had a tool made up to cut them quick....needs a tweak though...