Never heard of this, and Bob, I am older than you.
Was taught at a very early time in my lessons in mechanics to put 90 weight grease in the flutes if chips were a concern.
Not only does the grease catch the chips, but the resultant thread seems better than without the use of the grease.
Jon
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"Good carburetion is fuelish hot air". 
"The most expensive carburetor is the wrong one given to you by your neighbor".
If you truly believe that "one size fits all" try walking a mile in your spouse's shoes!
Owner of The Carburetor Shop, LLC (of Missouri).
Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings.
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