It's amazing to look at the pictures, see rust then no metal and then all patched and ready to prime. I know it's no where that simple but you make it look that way. One thing I remember from welding class in high school is the weld is stronger than the material being welded. Great work and thanks for sharing and taking time for pictures.
When you are done or need a break, could you do an article on grinding and flap discs? When to use which one and such.
Thanks again for sharing! Bob