Quick update here just to sort of put a bow on this thread. I chose to stick with stock springs, but I installed Koni Yellows, 034 camber plates (got camber to -2.2 at all four corners, zeroed out toe F&R), a Hotchkis RSB, and installed Conti Extreme Sports. I did a 2 day event at Watkins Glen with a my local PCA and I couldn't have been happier with the way the car felt. It was always composed and took a seat well through WGI's fast sweeping turns (the banking there helped I am sure!). The second day was consistent rain with water running across the track in numerous places. The tires did an amazing job of staying planted at speed. I was super impressed.
I can see where stiffer springs could help slow the rate and amount that the car pitches forward at some of the big braking spots, but no complaints here or from my instructor.
