Thin metal welding tricks

an a dvantage to using .023 wire is it is designed to work with low heat and wire speed. .030 works o k if the sheetmetal is new and not rusted to half it original thickness! and if you are decent welder! a good welder can fill that small pin hole with .023 IF he uses short bursts, let it cool enough before the next burst of weld. takes a little practice and feel., not that easy to do on thin, rusty, dirty metal, but mig likes good metal TOO!