I've always debating buying some never have felt like spending the money on something that gets such mixed reviews. I've heard that using a light fishing line on them rather than the original string that comes with them helps. Idk this for sure but seems like it would be worth trying if you have them already.
Red neck engineering- If ya can't fix it with duck tape, bailing wire, zip ties, and JB weld well than it can't be fixed.
If it moves and it aint suppose to duck tape it. If doesn't move and its suppose to put WD-40 on it.