I've seen people post every now and then that they have had luck with making jackets from coiled soft copper. I know that typically you would use 'hard' copper tubing (sticks).
With the soft copper coiled tubing being so much softer, what is the trick to getting suitable results with it? From what I understand, the hard part is closing the end and drawing it when it's really soft.
If you had success with closing the end and drawing it, would you probably have to anneal it at that point or would it still be softer than hard copper tubing would be at that point?
thanks in advance