You better get some stick time before I get a 4WD out to play! Yeah your going very well at the moment. Car seems pritty good too, as you said its just fine adjustments.
I do find sometimes, I and other's try to fiddle too much with setup once its nearly there. But don't focus on driving it better if that makes sense?. I used to run my 410 fairly light and with Ghea pistons. Which seemed to work well at Torch, over the slight ripples the track has at the moment.