I vote
NOmainly for the reason Verm states, it would set a dangerous precedent.
However, I will vote to fix all the hispanos. Every hispano armed bird has a major advantage. They can peel panzers in one pass (even spits, I've done it and had it done to me). I peeled to 2 panzers in a single pass (very close together) in a P38 with guns only. It had to be that single hispano that peeled them, because I've survived 7 passes from a P-51 and watched it fly away while I was laughing in my tank.
Who needs cannon anyway? I usually land with all 150 of me 20mm rounds unless I was attacking bombers or ground targets

"Those who can't kill with .50s fly cannon"
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CavemanJ
CO, The Wrecking Crew
"Airpower is a thunderbolt launched from an egg shell invisibly tethered to a base."
--Hoffman Nickerson
To close with and destroy the enemy by use of fire, manuever, and shock effect