Hi all Coded MIG / MAG / GMAW proc.no.135 (solid wire, active gas) * horizontal-vertical (PB) multirun fillet * open-root single V on-the-flat (PA)Say it's easy when you can do it, and in test conditions... Butt proved easier for me than the fillet. After about 15 years never done one, recalled conditions as best I could and it came out perfect first time, no practice. Got beautiful uniform penetration bead. Had alreay done PB multirun fillet which I found much harder work than the butt - where the dimension is controlled for you by the groove.