Originally Posted by BGTV8

My Z34 has an M150 which we are progressively implementing tunable traction control - I have a rotary switch on my steering wheel to alter the permissible slip percentage.

This allows tuning of traction regardless of grip levels (eg: when we are racing in full wet conditions all the way thru a wet track drying out to a damp track to full dry).

The Motec traction strategy is pretty good.