This image is the best attempt using the 1.7 on the M 400. I found that the combination would just not work except wide open in Av. I left the aperture at f/5.6, and pulling over the depth of field preview balanced the exposure at 1/60, while the actual exposure was 1/320 at the effective aperture of f/9.5, ISO 800. It was a really dark day. Within minutes of this shot, the rain set in in earnest, so we called it a day.
I must conclude that this combination is not practical. The combination will not recognize the manual aperture at all. It never stopped the lens down from f/5.6 no matter what I did. When I used the dof preview or green button to get a wide open exposure the camera indicated 1/60 rather than the 1/320 that gave a centered histogram. It was a fun day despite the disappointment with the 1.7x AF - it would have given me that little bit of extra reach. This image is not cropped in any way.
Imported through DxO to handle the K10D exposure corrections, then imported into Lightroom 2.3, and increased the clarity. No other adjustments.