Fitted one side of the system, as took longer than I expected. Having a damper blade really made fitting the lower one really tricky.
What was the problem (I have blades so forewarned is forearmed!)
When screwing in the lower swivel joint in place the nipple, when fully screwed, the top of the joint rubs against the bronze plate. Also very tedious trying to tighten the fitting with an open ended spanner. I had to inch it around a few mm at a time I installed it as seen in Craig jazz's photo as if it pointed upwards, then when the wheel turns, it would rub against the bronze plate as well.
Supposedly I am the one who has had the swivel joint the longest time, and I have no issues. Mine are pointing upwards, I found it the best way - but vertical might be just as good. Sure there is contact between metal surfaces at full lock and even a little bit of rubbing. But there is a little movement in the joint itself, and that absorbs most of the rubbing so there is no pressure exerted on the "elbow". I examined all of it very closely when I fitted it, full lock both ways. And I still examin it from time to time, to see if there is any chafing or damage. It has been a couple of years now, all is ok. I was reasonably careful when I adjusted the length of the tubing, though - making sure the swivel did not swing too much back and forth with the steering - just enough.
I also covered the tubing with a braided nylon "stocking", to protect it a little and also as tell-tale of possible chafing along the tube. You guys might know it already, but if you want to shorten or change the tube after fitting, you take a miniature spanner or a small plier and press the golden collar into the fitting, then just pull the tube out - shorten and push it back again.
