[slotloco]

Hi there Top Down.
I think the way you decided to "fix" the stub axle issue was a little risky, but if as you indicate, it has worked to give you a planted, stable front end  well done. I am sure it will give you a much more stable front end in corners.

All we are usually doing with these cars is
smooth, round, balanced. Everything we do is contributing to these same basic principles.
You could also weigh each "end" of the car, and aim for somewhere around that old rule of 60/40 weight split  60% being the rear end, 40% the front, while you wait for a test day.  On the day, you can quickly add or subtract some weight with the use of a ht glue gun, to see what fine adjustment does to the handling.

Keep your weight low as possible, those sock Capri bodies/interiors are quite heavy.- Steveca mentioned the racing version, which as he says, can be made to run really well. They have a lighter body due to their lexan interior, and the more usual chassis as inline setup with rear motor, but you are fighting high weight COG