I assume from your sig list that you have yet to get the swaybars?
I have the swaybars, panhard rod, castor kit, springs and dampers on, (castor kit is waiting for Nismo bushes to go in up front 1st).
Handling is mental really.........I've been tweaking it over the last week and have it set up pretty well. I got chance to test is out against a new shape BMW 325i back up/down the A22 from Ed's on Tuesday night, poor guy had the back end twitching all over the place trying to shake me........I stuck to him like glue and still had plenty in reserve. As you approach the roundabout at the bottom, (Ed will know what I'm on about), I turn sharp left onto the M25 anti-clockwise.......he lost it and ran wide, had to brake.......lairy stock RWD's for you LOL. I planted the throttle and shot up the inside of him and made him look like a right lemon.......still wasn't at the limits of grip either and I am only running on lousy Falken ZE-512's.
I cannot recommend Whiteline gear enough and handling will get better when the front end is sorted and the car is fully setup, instead of "by eye" as it is now.
Since there is a cruise on the Sat night, I will quite happily take some people out in it, (no crazy driving though as I am not getting pulled by the fuzz), if anything to make people realise the potential of their cars