Originally Posted by mhoward1

in truth, none of us really know the issue. We just don't know enough about the situation. It could be the car, the compunds, the set up, or the driver. Unless someone is there watching and feeling the issue only the driver can tell.

This is why an instructor at a track day, or friend on an Autox dry run can be very helpful.

Originally Posted by betamotorsports

IMHO, I don't think brake bias has anything to do with the "problem." On an ABS equipped car its hard to get the rear end really loose under braking. It should be moving around a little bit if you're getting full use of the rear brakes and I think the OP needs to just get used to that feeling.