adjustment suggestions for the Koni yellows?

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I have a set of Koni yellow with the one adjustable feature at the top.  I have been running them so far this year simply set at what the PO had them set at because I did not receive any directions on how to adjust them and they felt ok to me, and as it turns out ignorance was bliss, I suspect.
On Saturday I ran at the old air force base at Rantoul Ill. on a nice but a bit bumpy concrete runway which is a lot like Grissom.  (Its a rather nice place Architecturally with a lovely site plan with large trees and nice street layouts and rather handsome brick and limestone buildings moldering away).
After the meet a sympathetic local who I was lucky enough to befriend offered me adjusting knobs if I would follow him home....which I did.
So yesterday up at South Bend I tried some different settings.
1.  At the beginning the asphalt track at the Tire rack proving grounds was wet so I set the shocks at full soft since I believed that that would help the grip on wet pavement.
2.  After a run I began trying to tighten them a bit.
3.  And as the track dried I set them harder and between that and a drying track my times got better and better.
Any suggestions as to where to set them?  (Full hard just seems too obvious.)

Full hard.
Seriously.
You can order a knob from Koni.
- Nick

Tom,
  I usually have mine set more stiff in the front than the rear.  At Peru, Mine were a half a turn from full soft in the front and full soft in the rear.  On asphalt, I have had them full stiff in the front and full soft in the rear.  
  On the Koni yellows, the adjustment is for rebound, not compression.  You will get a slight compression change with the adjustment, but your not really adjusting compression.  That is mentioned so you understand that sometimes the car doesn't react the way you thought it would with an adustment on the shock.

If it is a C Stock car,  and the Koni yellows are not revalved, full hard all around is correct! Actually, harder than full hard would be just about right. Only in the rain you would not want them at full hard on a CS car.
Shaikh has done some very interesting stuff with the Bilsteins for C Stock cars. I wish he was around when I was running Stock back in 95-00.
George

nick is right....OTS konis are not stiff enough so run them full stiff.

Forgot about the huge spring difference between me and the CS car Tom is driving.  Full stiff.

It sounds like a consensus that full stiff is the way to go.
Thanks very much fellows!