Here's your Griot's polisher with a 5" Lake Country Backing plate and a 5.5" THIN Purple Foamed Wool Pad.
Here's the deal...
A thin pad like this and a hard backing plate like the one in the picture usually makes for some less than smooth buffing. It will also tend to create more heat and wear your pads out faster.
What you want is a foam interface pad like we use when we machine sand. This is a Rupes 5" foam interface pad. It's the perfect size for the 5" Lake Country backing plate and the 5.5" PFWs.
Here's the issue with this interface pad.
A: We don't stock it. I have one or two as gifts from Marco D'Inca at Rupes.
B: Even if we did stock it, the Velcro Hook and loop is wrong for the Lake Country backing plate and PFW's. (There's different types of hook in loop in the world).
So the size is right, everything else is wrong.
We do stock a Meguiar's and a 3M interface pad but these are both 6". The hook and loop matches but in order to use it you would have to take some scissors and cut it down a little.
I've sent the link to this thread with these pictures to a couple of friends in this industry just for their knowledge plus they might have a solution.