Science
There is a limit to how much metallurgical science I can assimilate, and... truth be told - need to.
I felt Al Pendray's successes, and the accompanying history in the video, fulfilled my quest for an answer.
Any more depth of research simply bewilders my layman's brain.
However, I must encourage others to follow-up on Ian's advice to see if there is more of pertinence to be discovered.
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