Well-I took the plunge, and opted for an all metal pre-shotcounter model G690BL - and I have to say, I'm quite pleased. I don't find the shutter sound to be that excessive, although loading the film reminds me of kick-starting an old vespa. The image quality is awesome, it's a bit heavier than I had imagined (2 kilos) -it does have a little shutter locking anomaly though....
About 1 shot per roll, of the 3 rolls i've pulled through it, will not fire. in all instances I will have pre-wound it, and been walking around with in hanging upside-down on my tripod mount strap. pull it up to take a shot, and the shutter button won't depress, -when I removed the lens to re-wind the shutter i find it still wound, yet the film won't advance either - if I flip it into "sheet" mode I then can advance to the next frame, but waisting the "stuck" frame. maybe a film winder overhaul is in order?
in any case, still pretty happy with it.
here's a shot from the test roll..