I want to hookup a spoolmate 3035 to my Betamig 250 (spec. 7189) and would like to know if this can be done without the adapter. The schematic for the betamig shows 20v to the motor. If I connect the motor feed wires to a double throw toggle switch and then use the switch to feed the spool gun or mig gun with the 20v would this work? The wire speed could then be controlled with wire speed contol knob on the welder. The trigger wires on the spool gun would then be connected to the AMP connector used for the Mig gun. Let me know your thoughts on this option. Thanks