In most shops you'll see your 6" DA paper for 40-220 grit in sticky back, but for 320-2000 you will see it in hook and loop. This creates a little issue with backing pads. So say if you want to foam pad something it will usually be with 320-2000, but there's also occasions where you want to foam pad something in 80 or something that's normally stocked in shops with sticky back. So what do you do? I just grab a piece of 2000 in hook n loop and just stick a piece of sticky back paper on top. It works ok I guess, but I want to make an adapter pad with hook n loop on one side and directly on the other side a leather pad to accept sticky back sanding paper. So it wouldn't be the foam interface pad, just an adapter of sorts so the interface pad would accept sticky back paper. Any thoughts on this?