You're right, and that's what I mean, but those 2 piddly 7.9 MG's certainly aren't going to dominate anything as the narrator was claiming. Once those 20mm's are gone, having 2 MG's that are sycro'd through the propeller aren't very lethal, and on their own compared to the 8 .303's are even worse. All I'm saying is that his statement that the 109's armament was vastly superior for 54 seconds isn't very accurate, and it should have been stated pretty much exactly how you put it, that if you're going to use time of fire to rate an aircraft's lethality, you need to more precise than just saying 54 seconds of awesomeness versus 17 seconds of lameness, as he put it.
I've read dozens of books regarding the BOB, and there is a great one I'm looking for that is written by a British pilot that puts a much less "rah rah the Few" spin on the war, and shows that the L/W was actually a lot more successful than many historians would lead you to believe. I've posted quotes from it on this BBS before, I'm trying to find the name right now. Anyhow, very similar to this video, it had a lot of interviews with L/W pilots and British pilots specifically regarding air combat and the 109/spit/hurri debate. Interesting stuff.