I tried Green / Blue on carpet last night in stock TC, along with a setup from Brett Sisley (a former Schui team driver who's returned to the brand recently). The car was interesting. Very fast, hyper responsive, but I could still throw it around and it would work very progressively.
I tried HPI Gold Front / Pink Rear on my 25.5 / X-Pattern car, and it was a travesty. Really tippy, and really hard to drive. I went back to my normal Pink/Silver for the main, and it was better, but the grip had come up so much it was still a bit tippy. :/
Speaking of Schui springs other than blue/white... It looks like most of their line has been discontinued. Does anyone have a pair or two of greens they'd like to sell?
-Mike