^Agree.
I don't want to over complicate what is a great opportunity, and testing will provide data on the specific dampers and valving. But on the surface, 350/400 seems pretty conservative for a dual use application.
Having recently driven a G/C coilover kit with Swift springs at 560/670, which with dampers set 1/4 from full soft, which was less harsh and better balanced/planted than stock (and with great anti-dive and no pop down/up on heavy braking), it seems for a mixed track/street kit we might want higher spring rates. BTW, I can't tell you how bad it was getting back in my car with the stock suspension after that.
Again, I'm not trying to derail, because this is a once-in-a-lifetime chance (for our car) to get a world-class setup. I just want to make sure the "track" side of the performance spectrum is given enough weight. For my intended use, track weighs more heavily than street. Lastly, data speaks louder than my subjective opinion based on a test drive.
