Here's another mod for ya - I use Air Trekkers, and I removed the plastic footplates & bindings, then took an old pair of cycling shoes (custom fit), and mounted them to the horizontal bar. Simply drilled a hole in the heel with a flat head M6 bolt (head under the insole), and for the front made a tab to hold two M5 bolts and screwed them into the common M5 cleat holes of the shoes.
I really like this mod. The shoes are totally secure, and you can use just about any full-support Look-cleated shoe with good strapping on top. The shoe entry is just as easy as strapping in. Of course the custom bike shoes made the feet most comfy, but I noticed 3 immediate benefits.
1. My stilts are now down to 7.2 lbs each (not including the extra weight loss from not having to strap on bulky shoes). Much easier to move around in the air.
2. I was able to locate the shoes as far back on the square bar as possible (the heels are touching the vertical bar). This felt like it gave better fore/aft control, as the center of balance was not so far out in front of the pads.
3. The cycle shoes set the feet lower, so I could lower the calf rods 1/2". Doesn't sound like much, but this gave a more secure fit on the stilts and more control confidence.
Be glad to explain any of the above if I wasn't clear enough.
Here's a side shot, and close-ups of the mounting:
http://imageshack.us/g/338/at1side2.jpg/