Right, yesterday I went to Performance5 and Phil (great bloke!) had a look at the suspension and did some tweaks for me, before I set off to Wheels In Motion in the afternoon for the full geometry calibration. The suspension isn't quite sorted yet, but the driveability of the car isn't affected so I'm willing to wait for a solution to be crafted, for perfection's sake.
I then took it for a nice long drive today and, well, what can I say. The combination of new suspension and having the geo done has totally, utterly transformed the car. It's so much sharper, more direct, each tiny bit of steering input is dealt with in such a crisp fashion, it changes direction beautifully. Body roll is hugely reduced, grip is hugely increased, feedback is increased, the car feels a lot more planted. I think this is a combination of the more aggressive geo settings whereby the extra camber and toe help the stability both in a straight line and... not
Taking a corner at a certain speed before would have resulted in the car feeling as if it's on the limits of adhesion, whereas now I can attack the same corner at the same if not higher speeds and it feels a great deal more stable. Understeer seems to be all but eliminated which goes a long way towards this. Roundabouts work in much the same way. The more 'balanced' geo settings are a world ahead of the "safe" understeery factory defaults. The icing on the cake also seems that even though I was caught in the ****ing rain on the way home, I felt no less confident, although obviously I wasn't throwing it around with quite the same vigour
Obviously the decent tyres go a long way towards this.
So that's my verdict. Worth the wait? Yes! Am I happy? Absolutely
Edit: Before and after WIM alignment sheet if anyone's interested:
HERE
Took the opportunity to take some decent photos too, I think it looks 10x better now it's lowered (rideheight is 330mm rear 320mm front) :