Entertaining stuff. What I heard, read years ago, aligns with that, rmflna. These were designed as racing hubs, after all. During a race, a mechanic could do a quick injection of "go fast" juice (oil) into them via the holes. Could be BS lore, I have no idea.

I have several sets of Record hubs but have never used the grease injection method outlined above. Never squirted oil into them either.
Whatever blows your skirt up though.