I just started to tig, I have a Lincoln 185. I am having a hell of a time trying to tig round stock to flat stock. Any suggestions? Should i puddle the flat stock or the round stock at first? Should the filler rod be all the way down into the crease where the round stock meets the flat stock. I can do a butt joint pretty good and I can lay a bead pretty good but this I can not get at all. Any help would be great. ThanksMark