Do you think that you will ever consider coilovers? Because if you do, then the springs would be obsolete and with KWs being 2.5x the price would be more wasteful. Sort of like an economic look.
Track / Autocross setup: Forgestar F14 (21.8lbs & 23lbs)
Front: 275/35/18 Continental slick on 18x10, Rear: 305/35/18 RA-1 on 18x11
Drift Setup: Front: 275 Continental slicks, Rear: 255 Michelin PS2 street tire
Laguna Seca previous record - 1:49:498