You then scrub time in comparison to other vehicles when you try to make the turns where previously the rear stepping out was an issue, now you are fighting the steering input level to get the vehicle to turn.

Your bet bet in my opinion is to get the rear to hook up as needed.

The M2C rear toe in block or something similar that gives you the extra toe in does that for you, without having ot mess with other settings on the rear that could adversely affect the handling characteristics of the car through bumps, etc.