I ran across this diy sportsman guy on youtube a short while back. He's got a few videos on climbing with 1 stick, climbing with no sticks, and stuff on aiders. One thing he did was to stuff a chunk of rope inside his webbing at the step locations so the loops stay open until you put your foot in.
No, I have not made them yet. I was finally able to pick up my Muddys today (not really impressed with them so far), might get a chance to start playing around on Friday or Saturday. Here's some links:
http://diy-sportsman.com/
https://www.youtube.com/channel/UCrWvet_L5H1_AV3kATmydnQ