I`m in the process of repairing a few minor probs with the 90 before I get ready to paint, one of these job is to repair the bulkhead, thats right, its a 90 and the bulkhead has rusted (pretty badly) in the top corner. I`ve ordered a couple of bulkhead repair panels from paddock (too much expense and inconvenience to replace the entire bulkhead at the minute, so here`s the problem, do you need to cut out the area the same shape as the repair panel and weld it into the gap, or do you just weld the panel over the top?