Sounds like yours and my machines electrics will be the same I was going to look into the closed loop system but for what I'll be using it for I couldn't really justify the extra. I've also been looking at that as I was wondering if I could use the PWM output to control my RC Speed Controller which will be powering my spindle. Sounds like some combined purchases could be made here!!! Yes seen a few threads, I'm fine mechanically but anything electrical leaves me cold...