Although my EVO is doing well, I'm fighting for on-power steering. I decided to give up my front gear diff with Spec-R 1 million oil for something heavier, and I refilled the diff with Gravity RC 2.5 million oil. Well, unless I'm crazy, the diff doesn't feel much stiffer. Is it because the EVO.6 diffs don't take much fluid, or is it because the gears are small? It could be that the Spec-R oil was actually thicker than labeled, I suppose. Either way, anyone notice anything similar? Anyone else running a diff up front? I may just try a spool to see if I can put down post-mid-corner power, but I'm worried about losing all corner entry.