I would also agree with just about everything else that has been said on here, I have the softest springs on the back with 25wt Losi oil, and have everything turned down on the ESC, so all the throttle curve, start power, timing etc, but also my initial brake force is lowered so that it's more progressive and not so 'grabby' with the back wheels.
The point about the way the astro lays is spot on and turns 5 & 6 highlight it perfectly. In turn 5 when you brake you lay the astro flat so it's becomes smoother and more sloppy whereas in turn 6 you are going against the grain so it has more friction against the tyres, so it's definately worth checking this out on the track when it's damp.
As for the throttle finger, I still get it wrong all the time too. Over the weeks you will just develop a better feel for it though do it does become less of a problem.
You will get there mate, I know how frustrating it is as I am still a long way from being good but I am getting better and so will you.
