Originally Posted by Pattojnr
a jump from 35F-38R to 40F-42R is a big jump. maybe can try 38F-40R ?
Just wanted to get back to this for a sec. If you remember I was having problems with a left rear wheel coning really badly.
I tried acouple of different compounds, and found I really like the 35F, 40R combination. Works well, lots of steering and the car rotates well. But I was still getting some coneing.
I moved the upper link (inner location) down a hole to increase the angle on the link, and the problem has virtually gone away now. I even ran 35F/35R for the main, and one of the qualifiers (25 Minutes on the tires), and both the left and right have side have remained fairly flat, and approx the same size.
Problem Solved! thanks for the help, and the suggestions.