Changed my mind, wanted to keep the available throttle band and since i had no issues for the high throttle i just added 470 Ohm to the low/ground side. That should raise the low voltage output to 0.4V
Result is a decent amount of dead band, really good throttle response and no controller faults
The Rieju now tops 105km/h
when it's unrestricted so i'm thinking of (eventually) doing a change in downgearing, 22:140 instead of 22:105 to give max 80km/h
The belt drive is great so far, only sound from the drivetrain is from the idler wheel which has an audible hum.
I think idler might be too small, could be at least 22t, also probably slightly out of shape due to the milling in my diy CNC. Let's hope it doesn't lower the belt life.