Last night I raced on a low grip, bumpy clay outdoor track, and tried the Xray 9 degree castor blocks for the first time. I am pleased to say it was a major success, and unlocked extra steering out of the car making it more nimble. An added benefit of running these castor blocks is there is now scope for front axle height adjustment and wheelbase adjustment by moving the castor block within the front arm. The car developed very good grip, and jumped and landed very well. I also managed to TQ and win by a decent margin.