To be clear-- I was only suggesting this as a plane specific change for planes like the Pfalz D-III, where the guns weren't accessible to the pilot. Instead of "every jam= 3 turns to clear", for those planes with inaccessible guns, a green jam counter means "Misfire, cleared in one turn", while the red one means "Jam- can't be cleared in flight."
But I can see where it could also be applied across the board to all planes, perhaps as a house rule:
red= take 3 jam counters
green= take 1 jam counter
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