I spent the Big Bucks for a Gitzo CF tripod several years ago. I have had to send it back twice to have the legs reglued into the top frame. Third leg I reglued myself. I've found I really have to twist the leg locks hard to keep them from collapsing. One of the upper leg sections seems to be separating slightly from, I believe, this excessive torque. If I ever have to buy another tripod it might not be CF, and certainly won't be a Gitzo.