made some progress with the PDG70
21.8 lbs as shown above
Neat bike; Paramounts were nice and that has a nice paint job. Nice Ringle seatpost too.
I'm wondering about that fork/stem combo. It appears that you have a stack of spacers between the two headset locknuts. Is this the original fork, or one from a larger frame?
I may be wrong but, I would like to point out that perhaps you would like to swap out that stem for one with a longer quill or cut down the steerer tube. Control Tech stems had super short quills and I am not sure you are reaching the minimum insert point (with the wedge past the weakened threaded portion of the steerer, below the top cup).
The current setup places all your bending loads on the weakest part of the steerer. Ideally, you would want the wedge somewhere bisecting the top tube and below the top cup. You also don't want this too long to get stuck in the thick butted section.