Thanks for the clarification Golfdude, for a minute there I thought you had managed to unlock the secrets of the ABS and managed a full range run. Odd that you got a difference with the rear sensors un hooked though. AFAIK to get a full unrestricted run the system has to see 4 coherent signals from the wheels at a speed over 15 km/h (from memory). Good luck with spinning the front wheels - that's going to be one hell of a sight and plenty of opportunity to take a picture for a forum caption competition. I think you may need to spin the fronts a lot faster though if the rears are at full speed, as the system also does a rationality check on the signals too. Anyway, best of luck!