+1 vote for flakiest post by Drak evar.
I understand what you're saying, though. I agree that if you feel ridiculous or out of place with something, your... er... holistic... er... chi centre of... er... spiritual ergonomics might be in jeopardy.
But be honest... all you're REALLY saying is, "ergonomics schmergonomics, I feel damn silly and would feel socially uncomfortable (eg. ashamed or self-conscious) playing such a weird looking guitar." You're willing to make the perfectly acceptable sacrifice of "some" ergonomics (a tele is still pretty comfy! Ergonomics certainly aren't out the window!) for the sake of not feeling silly, and there's nothing wrong with that. But you can't take that stance and paint it as "a different interpretation of ergonomics." Ergonomics iz ergonomics, and what you're talking about is aesthetics and self-consciousness. A whole separate and legitimate line of debate, but not one that actually addresses the issue.
Of course, if you're tough enough to not give a da** what other people think, or to even embrace the cool of alternate designs, then the selfconsciousness is gone, too! I for one wouldn't feel anything even resembling shame with the Forshage guitar in my hands! I saw him playing his own live, and it looked great as a standing and strapped-on (no funny comments...!) guitar, too. The Forshage body is a bit sleeker and less out-of-the-ordinary looking.
In any event, all these "live" situations are fairly moot points. Sure, the way a guitar hangs on a strap is important, but that's a much easier ergonomic problem to solve. There, with the exception of the neck weight/balance issue (not to mention overall weight so you don't break your back) it's a matter of strap height and subsequent guitar position. I mean, how high can any given person hoist their guitar before they look like a total idiot? As an experiment, I'm sure we've all taken the time to hoist that guitar up when nobody's looking... not right to the neck, but higher than usual... tilted the neck up more than one normally would... and felt our wrists breath a metaphorical sigh of relief as ergonomics take over. But you can guarantee I wouldn't wanna rock out with a guitar up that high, even when standing up. I remember one guy in my dad's band did that (with a strat, no less) and I always thought he looked a right git. No offence to high-guitar-strappers.
The MORE likely situation for a lot of us who aren't gigging musicians, is that we'll be at home with an audience of one (children/friends/spouse) if we're lucky. Generally not.
Greg