I re-used the stock clips instead of using the C clips that came with my Goodridge kit. I did not seriously try to use the C clips, since they are considerably less reusable than the stock clips. I would not zip tie it-- the barrel is there to prevent friction.
I do... err, did zip-tie my front wheel speed sensor wires to my AGX struts. No problems since summer 1999, and imagine my surprise when I install a set of Tein HAs and find they have a thread to fasten the speed sensor bracket to the strut!