I had the Miller XMT300 multiprocess inverter welder for over 25yrs, it did CC(stick) and CV(MIG) and did them very well..worked on single or three phase,awesome for 1990s technology..It had the 'inductance' control on it which let you freeze the puddle of the weld and make it 'run cooler' without changing your wire speed/voltage ratio..I ran .035 wire on everything from thin sheet metal to heavy structural..after 25yrs it blew up one day in a cloud of smoke,quite literally.
Now I'm back to an CP250 MIG power supply using my old feeder, 100%duty cycle machine, without the inductance control..Im not sure if the inductance control is a form of pulse welding or not,but it sure did make thin metal easy to work with,I sure miss it..
The 255 should be able to do most anything you want to do..what wire size are you using with it?
