[LMH]

Different coach builders do their bodies differently which is what I was referring to as their "fingerprints", so to speak. That said, most shapers seam the body down the top of the fender length wise. Kirkham's fender is paneled, includes the flare and is seamed off center towards the outside of the car. Most shapers make the flare separately and weld it on the fender, then grind/file the seam. Kirkham shapes the flare into each panel and welds the panels together to for the body. Most shapers use a whole or half buck or plug that replicates the body, scaled for the skin thickness. Hi Tech did that with both fiberglass and aluminum bodies. I've seen the 3190 plug many times used on their 427 body. Kirkham uses steel body plugs that replicate parts of the body and dictate the seams where the body is welded together. Their seams are very much the same (if not exactly the same) for each car.
Larry