Check out SmallHauls' doepke Unit Cable Hoe thread, it uses #35 chain with k1 every other link. I believe he mentioned using carpet edge transition for pads.
http://www.rctruckandconstruction.co...ght=Cable+unit
Photobutt ate the pics, so you'll probably need the browser patch to see them
I think rvjimd also used that chain to run pads on version one of his Ny-lint michigan C-24 crawler base.
If that doesn't help, i think there were a couple Dozers running the chain too, and they had to make more gap between pads to let dirt fall out.
Post a pic of your setup.