I actually wonder what tire changing method is faster, doing it one wheel at a time per gun, or doing like Porsche have done this year (and Audi from 2000-2006, and they were the first and at the time only ones I saw do this until Porsche this year) where they loosen one wheel, loosen and change one, and hop back and tighten the nut on the first wheel loosened?
Reminder: when Audi did that, the rule was two wheel guns were allowed to be used.
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