You do need to evaluate the edge first. I recently purchased some Factory Dovo's. The one I opened was surprisingly ok. All it needed was a go on my Escher. That's it. No bevel work. I always try to do the least amount of work possible to spare wear, so if the bevel is ok, and it's amost there, I'll just grab a finisher, then maybe 10 lapps on .50 Diamond spray on felt, and I'm good to go. Of course, since these blades are done by hand at Solingen, there are differences from blade to blade, Evaluation is a must, YMMV. Here's a vid from youtube on how Dovo's are made...
Making DOVO Straight Razors - YouTube