I've been trying to get my pad system just right because I'm too cheap (broke is more accurate) to buy an UQ and I've found the standard CCF pads to be the best. My Big Agnes Air Core moves way too much. That's getting filed under 'ground gear' from now on, which might as well be the 'for sale' bin.
The blue foam pads are cheap, light, warm, stay put well, and hold the hammock open so I can climb in without any effort... I can't ask for any more!