Thanks for the kind comments. Took the nearly finished mandocello for show and tell at the music store I have been getting mando parts from and they seemed very impressed. The Guitar mechanic suggested I needed to have the truss rod adjusted to make setting the action easier. He proceeded to do this with a rather long allankey with big screwdriver handle and later switched to an l shaped one with 8" arms on the L and was able to really crank the truss rod and take all of the bow out of the neck. He then called the owner over, a nice gentleman just a bit older than I, who declared my effort fantastic.

So I have adjusted the saddle so that I might have another 2mm to go but I have no buzzing even if I press down the 12th fret and pick the strings. Also all strings play the octave of the nominal pitch when fretted at the 12th fret. Now I will practice till I can play all of Neil Gow's Lament before returning with a video

Ray