I'm talking about those neat little rows of circles that modelers are so fond of. There is not a single photograph in existence that shows this on any eindecker...no matter what reference source you use. There was, however, some random scrolling. There's still considerable debate as to whether this was done for aesthetic purposes or to relieve stress in the metal or both. This random pattern is clearly visible in many old photos.

BTW, this random squiggle was used on the San Diego replica you mention (which I've seen in person and also have the eBook from Engels). However, the squiggles are a bit large and don't match period photos. Modelers can make the squiggles using an electric eraser, if they have one around, or just a bit of eraser material chocked into the end of a dremel tool.

As far as this being only "sport scale" so it being OK to use the circles, well, I just can't understand that kind of thinking. It's actually a LOT of work to do the "English turning" and it's actually much LESS difficult to do the random squiggles. So why on earth would anyone making even a sport scale model include a feature that is not only NOT SCALE but is actually MORE DIFFICULT than doing things in a scale manner??? The only reasoning would have to be "I like the way it looks." And in that case, all bets are off and the modeler might as well finish the model in day-glo orange (if that's what the modeler thinks looks good).

But if all the EIII modeler cares about is getting whistles from the guys at the field, then by all means do those little circles.