I don't have my camera (memory card taken by 19-year old daughter), but I'll try to post a photo or two tomorrow. The install was an easy swap (Cyclone for ARx), and I could leave the B-screw basically "out" in the dis-engaged position.

If I number gears 1-6 on the small chainring and 7-12 on the large, I have to be careful not to cross chain (6 and 7), because there's just barely enough chain in 7 and too much in 6 for the small Cyclone derailleur pulley mechanism to handle. However, in 5 and 8, it runs smoothly. I wound up adding one link to my chain to make it fit just right. I also removed the rear drive side dropout spacer thing, so that I could seat the axle at the rearmost position in the dropout.

Some adjustments of the high and low screw, attach and snug cable, and go.

I rode it ~38 miles after church today as a shakedown, including some hills. Everything worked smashingly. With PowerShifters on the down tube, the whole shifting experience is quite pleasant.

Finally, my stock chainrings are 53-42, and my freewheel is 14-28, so the combination is beneath the rated 26 max for the Cyclone. Thanks all for the encouragement, and I will post photos tomorrow.

Phil