[PaulMcElhinney]

Thanks for this David. I first did some OA welding on the courses at Leeds City Technology College taught by a great old panelman named Terry Devaney. I've just got my own OA equipment and I'm getting some practice in. I'm mindful of the fact that the experienced practitioner can't easily put himself inside the head of the novice so I offer the following. When butt welding two panels with MIG we're taught to tack up then do an inch at a time and allow that inch to cool (or use compressed air) before moving on. When it comes to butt welding two sections of a panel maybe 18 inches in length using oxy-acetylene what are the benefits of Mark and Natoli Panels method or fusion welding the entire joint? Keep it coming.