Thanks REDSC400,
I use to do the chalk test with my Vette at SCCA meets. Sounds like a good idea. I think I'm having a hard time adjusting to the thought of low tire pressures. I have a fear that low tire pressure at sustained highway speeds maybe dangerous. However, I've never had Bias Ply race tires before only Radials. I know what you mean about the hrash ride. I'm running 350# rear springs and with the tires up at 30# pressure it feels very jarring.
--Mike