Heh. That arm is for the safety bar which the original owner threw out 10 minutes after trying it. If you search hard enough for "safety straight" you will see a few that aren't Durham Duplexes.
I'm with the other guys. Put the blade in and hone it with tape on the spine. It will feel like honing any other blade, provided the spine is actually designed to set the proper angle. The spine wear isn't really cause for alarm either, since the blade was worn at an even rate with the spine. I would recommend that you stop the spine wear by only honing it with tape, though. Take my advice with a grain of salt, I'm still a relative newbie.
Originally Posted by Blaine
My name is Chris but you can call me "subtle as a train wreck."