"109E armament isn't easier, it's just different"
Ya I agree, I have done many of these and its always interesting to try the two different types out; the 303s have a real "buzzsaw" effect, and I will say again, seem to be very underestimated by some, untill they are hit at d200 by those things, and the 20mm MG-FF, which yes, have greater hitting power, IF you land a hit, and IF you do so before the drum runs dry.
"They're going into wooden planes."
The "metal fighter" A6M2 Zeros ability to sustain any kind of battle damage was notoriously weak.
The Hurricanes were partially wood (rear fuselage only) and had a great capacity for sustaining battle damage, and were also easier to repair. Nothing wrong with wood. The underlying armor (steel armor) for the crews, and self sealing tanks, was what made the Luftwaffe's 1940 bombers more difficult to shoot down. The pre war notion was that a battery of machine guns firing incindiery ammo, would light up a bomber and burn it. This was before fuel tanks became self sealing. This was a major reason why Japanese a/c were not able to sustain a lot of hits, because their crews were fatally vulnerable, and the fuel cells would burn like a roman candle when hit.
But I take your point that the 20mm MG-FFs are aimed at fighters, and of course, are easier to shoot down than a bomber. True enough.