I have the SFX pads and the DAS pads and I prefer the DAS. They're able to get into tight areas (around sideview mirrors, bumpers, etc.) and it feels like I have a little more control.
I do like the 100% velcro backing on the SFX pads, however.
Yeah, absolutely, the way I read the description sounded like it was saying one really only ought to use the Sonus polishes with them ;advise I'd reject right away.