I'd be interested in seeing more from the 80/3.7 -- I've never seen one myself, or pictures from one (until now). I'd say the loss of 2/3 stop is negligible in practical use; find yourself a different focal length next.
I should mention the one thing about the 220 that is less than convenient -- it's very easy for me to start to press the shutter release and then release the pressure, only to find I have activated the double exposure prevention. No lost frames -- I just have to turn the knob to "Multi" and take the picture (and then turn the knob back to "Single.") All in all, though, it's a really nice camera -- as sturdy as the 3 series cameras, but noticeably lighter and smaller.