Here is a pic of my drivers side front tire demonstrating what the car and tires are going through on this corner. This is with -1.5 degrees of camber and a cold tire pressure of 38psi. Don't know that it will be improved much after this upgrade..more to the point is that I am clearly pushing it. Good news...tires hold and it doesn't understeer much, but does a tad.
Edit, image was too big...