I think I got the idea from Dutch himself, but I put a stitch in the loop to which my Dutch Clip is permanently attached. That keeps the clip from falling off.
I use a tarp flyz on a kleimheist. My 1.8mm Zing-it loops on 1.8mm Zing-it line slips pretty badly. I have been meaning to go to loops made from mason's line instead to see if it will grip a little better.