I think I will respond later... and maybe better in a separate thread, I think this is far to interesting to be buried in a "WHOA AWESEOME VIDEO" thread

But one thing thing I wanted to comment on.
I don't think this firepower advantage would hold in a swarm scenario like TT bombing missions.. But then again if you've got the benefit of an attacking swarm, you can probably get a few kills before being outrun.
In fact I think such huge TT missions are the better place for a 410 to try for an interception.
I don't know when you played last time, but since we got the new towns, a lot has changed in regard to single, high bomber sorties. It's no longer the factories they are going for but simply town centers. Yes, we had that before, but not that much as it happens now. That means the bomber's flight path is much less predictable, and the bomber pilot can simply switch to a different set of targets if he sees an enemy darbar in the general direction (Mossie pilot's depend on that, and they are usually very successful at it). Now a (assumed) 350 mph bomber at 30k can surely frustrate any would-be interceptor that way.