Was that John Thompson? I think he is still here. There is a fun video on YouTube of Will, one of Davidson's builders, dancing with 2 big torches. My guess is Bulgie has some great stories about that!
Tuz mentioned .058" tubing and one thought I had was that if the gap isn't big enough, getting brass to flow into the joint is pretty tough. Silver likes a small gap but brass likes a little more room. Most crowns I have come across have pretty tight fit on the steerer so you'd need to grind out a little to get brass to flow well..
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