I'm the proud new owner of a 1979 M17, "Orli," with a couple of rigging questions I hope the group can help me resolve. 1. Prior to raising the mainsail, how do I properly adjust the boom so that the mainsail slugs remain in the mast's slot? If the forward end of the boom is raised above the widened portion of the slot where it and the sail slugs are inserted, there's nothing to keep it up there--and the sail probably couldn't be raised all the way up. But if the forward end of the boom is allowed to drop down from the widened portion of the slot to the point where it stops on its own, most or all of the slugs fall out of that wide portion. Yet it appears that fully-down position is where the boom is intended to join the mast, to judge by the position of the two eyes and two jam cleats that make up the cunningham, such as it is. (And by the way--why are there two of each, rather than just one? I think I'm not understanding something.) 2. My 100% jib is at least 16" shy of the masthead when fully raised. I think my 150% may also fall short. I thought maybe this was because the mast was raked back too far--could that be? Did it shrink over the years? (It's old.) Is it the wrong size (though it appears to have been made especially for the boat)? Any thoughts much appreciated!