New welding wire improves weld quality

The welding wire that came with our welder was acceptable but hardly what could be called ideal for welding any type of metal that I tried.

After fighting through the spool, I made a quick trip to Home Depot® and bought a new spool of .035" flux cored welding wire for about $9..... Why didn't I do this before the original spool had run out?

At this point I wonder why myself...

Below are pictures of 2 scraps of steel I welded together to test the wire out.... One is 1/4" and the other is 3/16". Neither one was prepped other than to remove excessive surface rust with a wire wheel.

The fillet weld on the outside of a 90° joint.

Same weld from another angle.

This is the inside of a different 90° joint, but the same scraps.
One of the scraps is angle iron, the other is flat bar to cap the end.
Looks like I should clean it up more and work on better tip speed control....

More later...