Thanks for the input so far everyone. Personally, I've found the default set-ups to be fairly neutral, having a good balance between under and oversteer. Of course, I'm probably not taking corners as fast as I possibly could be and would notice more understeer if I was. With the WR setups I've tried, I find that even when trying to be smooth and gradual on throttle application, I still lose the rear-end. I know it's a matter of finding the right feel for me, so I'll keep monkeying around with things. As for the running with a lot of downforce, won't that move towards killing speed you would have gained in the corners by reducing your potential terminal velocity?