I've always polished with Foam as long as I've had a PC 7424, but with a Rotary coming I want to check out wool. What I don't get about wool though is why there isn't a gamut of abrasive levels like there is for Foam from anyone BUT Edge (which in turn makes the Presta line)? Is there no need to go that 'all out' with wool? Can you polish it down with a white or yellow wool pad from AG (mild/med cut) and then do your glaze/LSP with foam (which is ideal anyway)... I'm a bit confused about this since I'm not familiar with wool.