No, they're probably common sense... to most people.
1) I was welding with too much wire out of the tip, ie. > 1 inch. 1/4 inch is best (less resistance).
2) Since I'm not using inert gas with my wire feed welder, I can take the gas shroud off the tip, making it easier to get in to the corners
What else....
3) Read your amperage/heat chart for your welder.
IE. what current setting do you need for the metal thickness you're using. (I was basically guessing, and going higher when in doubt.)
I am still having problems with the wire speed. Maybe it's a problem with the welder, but on the low amperage setting, the slowest wire feed speed seems too fast - the wire is bumping into my work. I'll have to look into that.
I got about 5 puzzle pieces welded in place.
But the project is on hiatus for a couple of weeks, because I'm on hiatus - going to the east coast for a summer holiday. Friends, sailing, seafood, biking!