I find that it depends on the shorts I'm wearing. My pearl izumi (nongendered) tights are great with my longer Hincapie bibs, but horrible with my shorter, no-tight-grippy-leg-opening Descente shorts. They fit reasonably well, but the popping out from under my hem on a cold day phenomenon isn't one I want to repeat. Just use longer shorts/bibs with small leg openings with your leggies -- cheaper in the short term than ponying up for dedicated tights, though later that's exactly what you and I are likely to do. (Besides, the chamois needs a wash every time, but your leggies don't!)