I'm a pipe welder on submarines and I started about a year ago. I have to use the mirror everyday, flex head torch, and 45 heads to weld in the situations I do and the one thing that always helped me when I was having trouble was to just focus and take my time. It's hard to mess up with tig so as long as your taking your time adding metal when and where you need to you should be fine. I also have to weld on pre heated joints so something that really helped me out was a tig finger. You put in on a finger on your torch hand, left or right, doesn't matter and you can rest it on the member and can really improve your consistency. Very heat resistant, I would usually work around 200 degrees min. I stick weld a lot as well so if you have any questions let me know and I will help if I can. Hope this helps