Perhaps the finer part of finding a balance is what you do with the tools, and how open you are about what you've done...
For example, in my image - I've just removed clutter, and (aside from filling in the gaps created, and putting a plate over the wing-mirror mountings that Jack had forgotten) not added anything. That's perhaps an over-simplification and somewhat weighted, but it's not inaccurate. The crucial part though, is that I'm not one to pass off a 'shopped image as a virgin capture. Of course in the post here, it's deliberately obvious (as was the point of the thread), what's been done. I could imagine a situation where the final image might sit in a frame on a wall, and while the 'workflow' wouldn't be shown; if anyone asked if it was Photoshopped, and how, I'd never dream of being anything but honest.
In terms of your (absolutely stunning) capture, as you say, you could composite something like that in PS; artificial in a different way - in so much as, if the two aircraft were never in the same frame, and you used digital wizardry to put the second in place; I'd say (and I suppose this is much more down to personal perception) that a shot like that could more fairly described as manufactured. I guess the way I look at it is that if you're performing tricks that you could do in a bath full of chemicals, that's not so bad; and likewise if you're playing with things that aren't an integral part of the image - the foreground subject/focus, that's OK too. If it's anything outside those terms, then I begin to have a problem with it.
Anyway - getting on to your shot properly, that really is a stunner; and being a veteran of a good few airshows and various sketchy spots approaching or beside the thresholds of various runways around this country and others; I completely appreciate the measure of skill (and of course the good fortune on top) to get that shot. I'd love to be able to show you some high-speed in-flights of mine which are even approaching that quality, but the harsh truth is I don't have anything close; I'd like to think that's mainly because I've not had the opportunity since I've
properly been into photography, so maybe one day soon - but as you've so rightly pointed out, it could still be another 30 years, or beyond! I've got some low-speed 'in the right place at the right time' shots, maybe I'll dig through some and we can start a thread to spam this place with aviation captures!
Here was one I was quite happy with (taken after I'd given up with film-SLR, but before I took the plunge with a digi-SLR):
If only the ****** field was flat! Still, I was pleased to turn around when I did!
I'll start a thread if I can find any of my real 'faves' (mostly at home in Wales, I'm up with the 'rents in Preston atm)...
And likewise, thanks for an interesting and sensible discussion...
All the best,
Rob.