First test outdoors with my new Arax tilt adapter and a heavy, first generation Flektogon 50/4 lens I got off Ebay (neither of them peanuts-cheap, but still way cheaper than any tilt-shift lens!). Even wide open, the tilted lens allowed me to get in focus both the rippled water in the foreground and the distant clouds.
Shot handheld at 1/60s, f/4, ISO 400. The shutter speed barely allowed me to shoot handheld (1.6x crop factor) and freeze the motion of the water, but any ISO setting higher than 400 doesn't look great on my camera. I was standing about 3m above the water level, so I tilted the lens down slightly less than 1° and focused (using LiveView) on the clouds above the horizon. The clouds high in the frame were out of the plane of focus - but that's hardly noticeable since they were rather fluffy anyway. What was important for me was the sky above the horizon and its reflection in the Humber - considering the slight motion blur, I think I got both sharp enough, since on the full res file I can still see the power cables hanging more than a couple of miles away. I'm sure I could've done better (down to one-pixel sharp!) if I used the tripod and focused more carefully, but I was in a hurry and this was just a casual test.
Although tempting when shooting handheld, it's worth remembering it's not always a good idea to focus and recompose with a tilted lens!
Oh, and sure, the sunset was magnificent, as usual :)