Thanks for all the replies.
Transmission spins super free. When you calculate wheel rates the spring set up I am using is softer than yours Simon, damping will be a fraction stiffer and pack quicker though.
I think I have traced the problem though now.
It's a combination of diff freshness balance (front is much looser than built, obviously I didn't bed it in well enough) and my driving style.
I think the FS2 simply has too much natural rotation for my style. What Kyosho have done is build a car that rotates very freely and changes direction super fast. That is not what suits my style so the fix is simple, either I work on generating less natural rotation from the FS2 via some geometry tweaks or just put it back to FS spec.
Seems that in building the car the majority of its customers want they have exposed the weakness in this old man
Just as well the FS is still available, I might have to buy two
