Vet,
Even though a picture is worth one thousand words, that won't stop me....
Knowlton, port upper fitting.
Note that the 2 sections of streamline are neatly joined on a line bisecting the angle, at 90 degrees to the throat of the fork. Note the locking nut for the adjustable ball. Note how wide the spread of the legs is on the fork. (What you feared when we spoke!)
While I would have to go to Quebec or Ottawa to be 100%, I believe that only the two balls at the tube junctions are adjustable. I believe that the fittings on the terminating, single tubes are similar to the gear leg forks. While I do not have a specific closeup of these single tube ends, there is clearly no nut for locking an adjuster in any of the photos I have.
Regards,
John