Well D for me what I did was and I run on a really tight track with 3 180's was take the rear tow from2.5-2.0 and sometimes 1.75and added more caster to get the low speed off power turn in also I put a thicker rear sway bar on to help get rear side bite sooner in the car and it worked for me.So what I did was decrease the rear toe cause I had a slight push off power coming into a tight corner than I had a slight push on power coming out so I added a thicker rear sway bar and it made for a better driving car for entering mid and exiting just wish I would of thought about the to tight diff and ran it looser the car would of glided than