PIDController Parameter values for QuadEncoder

[robotsteve]

We are using the quadencoder from the kit with a victor motor control
for speed control and are having problem determining a set of values
for the P, I and D parameters.

We have tried increasing P until the wheels ran uniformly along with
other params, include PID Clock cycle and PID tolerance.

Any suggestions or help would be appreciated.

(Note, I don't have all the details here as I'm composing this,
so if I left out something important, please let me know).

Thanks-
Steve