My GTR had (dare I say it!) ISC coil-overs 8kg rear and 6kg front from memory but it did handle well albeit rough as hell! I find the Stag easier to punt quickly than the GTR because it's a little less tail happy on throttle as TypeS said ^^^^^ it feels like it's on rails. My Stag does seem to be a lot lower than most others (including other 260's), maybe that's got something to do with it?