I returned these.  I started out ordering 527's in a color or size that wasn't available and then inadvertently selected 505's which I know from past experience require a smaller waist size (uncomfortable) or a pair of suspenders to keep them up.  It seems that since my waste size has grown larger than my hips I am more comfortable in the low rise, that is if I want to wear a belt.  I have both 505's and 527's, and both are comforatble as long as the 505's are accompanied by suspenders.  The 527's - I can wear with a belt or suspenders and are equally comortable and secure with either.  Hows that for TMI.  Just sharing in case others have a similar fit issues.