Thanks! It is MIG. I'm not so great with stick but do OK with MIG or TIG (although aluminum is still a challenge...). I'm definitely no expert (totally self taught), but if I were to offer any advice it would be:
1. Clean and prepare the parts to be welded thoroughly. No rust, no paint remnants, NO GREASE, just shiny clean metal. Stick will blast through a certain amount of crud, but MIG or TIG are fairly fussy about having pure clean metal.
2. Use a little more heat than you think you might need and don't go too fast. When I was first learning I would get too excited about burning through and move the MIG gun along too fast. Just ended up with a bunch of blobs loosely stuck on the surface. Once I figured out that it won't burn through that easily, especially with thicker pieces, and slowed way down my welds suddenly became 1000% better. I have a 170 amp MIG and it was turned up to full power and about 80% wire feed speed to do the hooks and it took probably about 30 seconds to go down one side of a hook.
Here's a picture of my welding toys. I mounted everything on an old tent trailer frame so I can pull it out into the field or to the neighbors with the quad if necessary. There is a 10,000 watt generator, air compressor, Lincoln Pro-Cut 25 plasma cutter, Lincoln Square Wave 175 TIG machine, Lincoln SP170T MIG machine, and oxy-acetylene tanks. I have all the machine's ground clamps clamped to a piece of 3/4" copper pipe and one common ground cable soldered to that. There is still a bit of a tangle of wire, but the 2x4 frame with hangars help keep it somewhat organized.