[svx_commuter]

I am not familar with the best speed for buffing but I have made a variable speed controler. I use this with the belt sander, drill and dremel tool. I used one of those rotory fan control switches and wired it together inside two metal outlet boxes, one for the switch and one for the outlet. I have been using it for years now and it seems to work just fine other than it gets a little hot. A slow speed belt sander is awesome for removing paint or poly. It dosen't get hot enough to melt and stick to the belt.

I think that if you have a faster speed buffer you have to move it faster so that you don't melt the clear coat.