I have these on my SF. Had it hung today, with a lot of wind. I noticed that two of my guylines were loose, so I tightened them and watched as one slid back. Guess the little teeth on the line loc is worn just enough to not hold. Tied a taught line hitch to keep it tight until I took it down. Luckly I had an extra line loc, so it has been replaced. It would still hold as long as I didn't have a lot of tension on the line. Kind of defeats the purpose. I have these on my Tadpole, and have not had any issues. Maybe it is just a defective lock......RR
I'm a member of PETA!!!!