Have heard about this.
I Though I had quite a bit wound into the front but still heaps of room. Maby it's because I run small tires?
The wheel alignment guy reconed it was too much caster, even for track work and we agreed to take .5 off it. Heaps of clearance to the bumper.
Still oversteers well before under steering, so there is no need to go more agressive (yet)