In general, a bigger front bar results in more understeer, and I'd yell at someone for saying they would have used one. However, this is weargle, so he's probably being sarcastic or more likely, serious about reducing body roll. The heavier front bar combined with a stiff rear bar and aftermarket springs can certainly be tuned to be neutral. I am thinking about drilling holes in my bar so I can move the endlinks down and make it stiffer, if my new rear springs (425lb/in from 280lb/in) and Aussie bar make the car too twitchy. The extra front weight transfer will make the car tend to understeer, but if the front tires have better camber because the car is rolling less, then maybe it won't end up understeering. It's all a matter of looking at the suspension as a whole instead of isolation.
