Dedalos,
I think you are being a tad unreasonable.
You demand a co-E start to be on equal footing, but the only way that is going to ever be true is if the two fighters are the same, all the way down to the ammount of fuel they have. Beyond that, for it to be a fiar fight, one fighter will always need some advantage over the other, be it pilot skill, position or E state. To dismiss any kill because it started from an altitude advantage is ridiculous. Do you, as you are playing, say "Got 'em, but it didn't count as he was below me." or "I will only ever attack fighters that are co-E (as though you can tell) or with superior E."? I somehow doubt it, which means you are holding the Mossie, for whatever reasons of hostility you have, to an unreasonable standard.
Nobody has ever claimed the Mossie was the most spectacular one-on-one dogfighter, not even those who claim to be able to fly it like a Spit. For some reason you seem very set in stone as to the Mossie's complete uselessness and will not take anything else for an answer.
Did you watch the Mossie VI vs Spit XVI film? Certainly it wasn't the best Spit pilot, but the Mossie drew it out far, far longer than your discription would have us believe possible against any Spit XVI, and it started co-alt.
For my part I simply like the Mossie. I like to aircraft and its history. I was merely good enough to be able to use it with more success than failure. Does that mean I am bragging? I don't know.