I currently run my starter fertilizer with Trimble Field IQ.  It works fine but it means I have two master switches and coverage maps to deal with on the planter.  The setup is a Surefire Tower 110 system with PWM controlled electric pumps and a flow meter.  The PP Rate Controller literature only talks about PWM controlled hydraulic motors.  Does anybody know if it will work with an electric motor setup?  If so, what all is needed and what does it cost?