Recently been putting sometime in the 38G. Had to leave my 38J behind in AvA.

First off, in the hangar load outs, it says the 20mm on the G is a M1 whilst on the J its a M2. Is this a simple typo? If not (and I think not), then whats the difference in ballistics of the two?
Secondly, had a fun fight in a 38G against a 109G yesterday in the MW and he got a sustained rear aspect burst in at an angle which I know (after so many PW in a P38J) would have resulted in a PW had I been in a P38J. But I was surprised to see it didn't here

. Which brings me to my second question, how does pilot armour compare between the G and J both in RL and in AH2? Does that forward glass plate return the protection I lost with the forward engine?
After the above incident I took the 38G for a few more sorties and deliberately HOed a V field ack (wasnt deacking, was conducting some research

). Rat-tat-tat-crunch. No PW called up damage list and lo and behold --> gun damaged

. Think thats how its should be anyway and maybe the PW in the J needs another look

.
Anyone?