Update: We had four M3W's and five people for a great time! Always nce to meet new friends. Turns out I am the "old man" of the group.
We had rain off and on the first day so it was only a lunch ride. Day 2 we "Slayed the dragon" and took the scenic route home. Day three we went to Dales Wheels Through Time MC museum.
I had suspected as much, but it turns out I am buring oil (5 quarts in 750 miles). This was especially evident when I was doing a lot of engine compression braking. Unfortunately I will not be able to work on the M3W until late December, obviously starting with a compression check. Hopefully it is only valve guides, but the worry is parts availablity as the X-wedge is made of unobtanium