Yep, I think MIG would really help due to it's "filling" nature. At the end of the day, I only have rudimentary cutting tools, so making the parts fit well is next to impossible with gaps of 1 to 3 mm a lot of the time.
I've used MIG before, and even though it looks and sounds horrendous with the splattering and noise, the end result is better welds in general (in terms of fill and penetration).
TIG is fine for exposed buttwelds, but getting into narrow concave bends with both the torch and the rod is much harder than MIG.
Edited by Nev, 26 August 2017 - 09:20 AM.