Very nice! Yeh the RS4 is NOT bad for racing at all. But when you start to push it hard you need some rear end tuning abilities more than the 1 or 2 Deg toe in options wiht the VERY weak and VERY flexible rear uprights.
Yes the HPI sways are a joke I would take them off cause all they are is weight. Also with the springs being as strong as what you are using, none of those bars could do any weight shifting against those.
I have my Kyosho here and really the HPI looks more bad ass
but the Kyosho is a wonder to look at, engineering took first importance on it it seems. Very cool car. Not perfect, but very cool. Cant wait to fling this thing around the track next summer.