Didn't have that experience with the +8mm mod like WC has claimed ...

I felt I gained traction from it.

But, considering the fact that while doing this mod you raise the inner ball stud up to 7mm in general, that is the part that will take away rear bite. For anyone wanting to try this mod, I would highly recommend you use the same static inner ball stud height before making the riser change on the hub carrier.

That way, you can actually see how it works versus changing to two areas on the car and assuming what it actually did.

As for the comment as to what is the best choice, VTS with X pads or a center diff, Me personally I trust a lot in the info that Shark posts, great contributor who actually tries stuff before commenting on it being good or bad, so looking forward to seeing what he finds.