I've heard mixed reviews on the Nevegal's--that they have a high rolling resistance on gravel roads, etc. but roll fast on looser stuff.

I've heard the Karma's are good all'round tire.

I didn't check my tires before my first ride this week. I just checked them out this morning. The tire pressure was at 60 psi!!!! The tires themselves are rated for 30-50. No wonder I was bouncing and skidding all over the place.