I'm running FK Konigsports, i can't remember how 'soft/stiff' the dampers are dialled in at but after a tweek or 2 i left it. Even half a turn made a difference, what felt right after the last tweek was then left. I don't think i could get into the complexities of constantly tweeking for a supposed 'perfect' set up, especially from one trackday to another. I completely get it in motorsport.
Three things i know that are set and work for me are, front and rear camber and toe out. Combining all this the Clio felt stable, superb out on the Nurburgring. Probably down to driving style as well, more smooth than last of the late brakers.
Also my 2 pence worth i think for the price FK Konigsports are a decent trackday kit, adjustable damping, ride height and camber.... Not bad or £650... Dampers by Koni