Mig welder questions

My go to wire rig is a Lincoln 260C but it's a 230v machine. I also have a Millermatic that's a 110 machine. Bit I have to say I prefer Lincoln over Miller any day of the week but nothing wrong with either brand. You for sure want to stay away from the tap switch for the current control they just not enough fine tune adjustment on them to weld sheetmetal.