To Stoker:
Yes - I know - never span a hollow body in a chuck - this and 100 other rules in your workshop
but sometimes a little lazy man in your Brain persuade you - and it can work 99 times....and then "Bratatatata"
(I like the terms by Roy Lichtenstein)
To Jim:
The Burner has been treated with "Shot Flon" to make the antique finish. It is a sort of
Browning chemical - you will find "how to make" videos (funny)
and there are many more...
Arnold