I heared what robbie described me to you. bowser and I are on the same level just of the last 6 to 8 months i had a career change from and auto tech working on mercedes benz to working as a mortgage broker with zero income it will put a large stress load on someone well things are straight now. so now i can put a full effort then some back into r/c life is prioraty at times.
I have spent the last 3 weeks doing extensive testing and I have found a few things that the demon cars like for instance need to be sprung lighter and dampend lighter then the Ft car and other cars, pluss playing with roll centers I have my car faster now with spool at all tracks then with a one way.
Pluss as far as wieghts I found that out during initial testing people over look playing with the ballast. Its a valuble tunnig aid.
another thing I found is that shaving the f-o block down giving it antidive helps the car be more agressive but fees up mid corner and exit without having to finese the throttle.