48v conhistomotor controller

I'm using the Conhistomotor controller for the 48v model of motor, it's the largest one I've had to deal with but it's then most I've had the privilege of struggling with.  I think if they can change the PAS from 60%, 70%, 80% assistance to 10%, 30%, 60% would be MUCH better and more widely accepted.

Here is the size of the controller board.  It takes up the entire casing.  I do like the rubber nipples at the end of the controller to prevent wire chafing.

 I took the controller apart to see if there was a way to reduce it's heat sink size.  There was not.