Because it's a tapered thread I had to heat the joiner nut to make it screw both ends in also heate till soft either side of the joiner so it set in its new happy spot.
Seems to do its job
At this stage I'm prepared to take that on a 3 month ride. Strong, repairable on the fly lightest in the business
The other side I'll just making a weekender till more parts arrive
This one is made from the cheep gardening tube. $6 for 600mm. It handles completely different to the other stuff. The line between soft and melted is really fine. It's far easier to melt and fashion into a new shape.
You can make a right angle bend a flat foot end and all one peice.
Now I wait for the right side long trip part