THANKS Gary, really appreciate your help.
Unfortunately i do not know my spring rates or the specs for my coil-overs. Coil-overs are made in Australia, by a Melbourne manufacturer called "Hot Bits", unfortunate name, but i am very pleased with the coil-over.
I was considering adjusting my sway bars, now i will. At present the front is set to the stiffest holes and the rear is set to the softest. I will adjust the front by moving one hole back on EACH side, and adjust the rear by moving one hole forward on ONE side.
I have raised the car twice already and it sits above legal hight, with the 19's (i use 17's with RE55s for track days). May consider a third raise, as the 17's still manage to somehow rub the inner liner on hard cornering.
Thanks again!