This is only my opinion, I also have a Bismarck, three-pin, and have never really enjoyed the shave from it, patchy and not very comfortable.
As someone who usually blames myself, rather than the tool, it was honed by two different skilled people, and compared to all my other various straight razors, it seems to just never measure up...again, may be just my particular blade, or the way I use it, but not really a fan of Dovo razors.