[ToyCollector]

Practice is the key. I got scraps from different metal yards, and most all pros will tell you to start with thick stuff and work your way to thinner guage. I am nowhere near a pro. The other thing I did (I happen to have Miller unit), was hit the Miller website and for something like $25 you can get a BOX of student material that included like 7 or 8 different books, reference guages, etc. This material is what I would say is non-brand specific for the most part. Best money I ever spent.