Most of my cars are quick enough for the classes they run in but I'm losing ground in the corners, so I've been reading through volumes of post and trying suggestions for making them smoother that I've found. I've been able to shave some 10ths off of some cars on my track but I don't know how it will work out on race nights.
I do however have a Ninco XK120 turning faster laps than a slot it GT40 set up with the same specs. So that's something at least.