i had 2.5 DHF/2.4 DHR II exo+ in the truck and planned until weather started rolling in, so i went w/ the 2.3 DHRII / aggressor thinking it would be a lot faster. clearly it wasn't. trying to plan to do a bunch of other more direct comparisons soon. after this, though, teamrobot seems to have hit it on the head - tread patterns may not matter much if same size, casing and compounds are compared. semi-slicks for V2.0 for sure, too.