I am no expert on double edged, or single edged razors by any stretch of the imagination. So I won't even try and give you advice in that area. As to straight razors though... Looking at the price that you paid for those three, I would expect them NOT to be in "shave-ready" condition. And my suggestion would be to send all three of them to a honer (you can find them listed in the classifieds, though you might want to stick with Lynn for right now), and let them pick one or two of them to hone for you. This is really the only way to guarantee that you are starting off with a good straight razor.