I use wire and string Well, paper clips and yarn... the paper clip makes such a perfect lil hook and the yarn is so springy.. never had any real problems with flow being cut off.
I even did my latest lsting yet using this method (3rd week of flowering, damn thing outgrew my light) and she seems to be fine. No stress points where the wire is, no dips or hurt spots in any way.

Lol olds, ive never done that but that would be a blast to have a completely curly plant. Not sure what that would do for yield...

Weedneedy, just keep pullin her down and lsting so she can get the light!