My main welder is a 15 year old Lincoln Powermig 255. The thinnest I usually weld is 1/8 inch and always have used .035. I may have some sheet metal work coming up so looking to get thinner wire. I haven't welded sheet metal in 20 years and hated it back then. My machine gives me tables for 030 and 025 down to 22 gauge. What wire size and type are you guys using for the thin stuff?