Yes Dan, I'm aware of that statistic.
So let's just use 20% as the number for a stock setup. That means with Wilwoods, maybe you're now at 15%; just a guess, but the point is, it will be less. And because it's less, during braking in a corner, the car will exhibit more oversteer tendencies.
Just stating a fact. It shouldn't be enough to be scary/dangerous, but I'd imagine it would be noticeable. Might even make it easier to blast through short corners be power sliding.