I weld so much Titanium that I forgot how I enjoy welding steel once in awhile. I love welding Titanium because it has to be done right or not at all, there is no in between. All the parts have to be perfectly clean, it has to be purged properly, you have to have the perfect heat range, and you have to have the right amount of filler rod. As you are actually doing the weld , you literally have about ten things going at the same time to have it all come together properly. Steel is a bit more forgiving even though some of the new higher tensile alloys are a lot more sensitive to cleanliness , purging , etc. Welding as much Titanium as I have has actually made me a better welder when I work with steel, as I am so used to having to have everything so perfectly clean with Titanium. Anyway, it's all challenging and is still a lot of fun to do!