Thanks guys - this is really helpful.
I did just swapped out my PS2's for stock sized PSS.
I consider myself an intermediate track driver - have experience at Sears Point, Big Willow, Laguna Seca in DE's and a formal 3-day school. In my modded e36M3, Barber Mx5, and shifter karts.
Looks to me at least -1.5 is achievable w/out camber plates, but on a lowered suspension. If I go this route (say w/ KW V3), I'll only have to worry about keeping myself on a leash and not bombing each corner and rolling the fronts over on themselves. Budget permitting I like to save that type of driving to rented and insured equipment.