The general consensus with most of the setups I've been sent is first, drop the tire pressure to it's lowest possible setting. Shouldn't there be some sort of constraint or physics based penalty if you do this? A drastically under-inflated tire should begin overheating almost immediately .... shouldn't it? Same for over-inflated. Tire temps should rapidly increase (at least on the center section), and in both cases the grip level should be reduced. But I don't really see this. Perhaps it occurs during a long sesssion, but it's not happening for most cars that I'm aware of. Should the best physics of any sim be that easy to defeat?