New APB arrived yesterdayfitted it into a circuit, and powered it up using a single PB4 PSU. Now If I power it on the socket closest to the track I can run a car for about 2 laps then it stutters and stops. If I run it on the socket furthest away from track all is fine. So what is going on?Are there differences in the circuitry from each socket? Why? I have a 15V 10A supply on the way from the bay so how I m I going to wire that in? Am I missing something in my excitement?