16 ga, actively concentrating on the sound and moving faster than my instinct tells me. Starting to see the difference between a welder and a grinder. I'm still a grinder, but I have glimmers of decent ...
jackson hoods work well, never had issues with it.
if you drop a 1/8" bead across some 1/4" material you only have 1/8" strength and your 1/4" material was a waste.
until you get up to 1/4" and beyond your bead needs to be about the size of your material.
a flat butt weld should be dug out and would lay a worm with some crown. a fillet (90* corner) would crown in the corner if the deposit is sufficient. your trying to leave a bridge comparable in strength to your base material.
It was like one of those "Ah-Ha" moments when I put it on and layed my first bead. All of a sudden, I could see what the hell I was doing. It definitely made a BIG difference in my welding.