We love our Fastguns too,....but did have an issue. I always tighten them the same but was going down the road one day & noticed one bottom hook had come undone. It was swinging in the wind from the top hook. So lucky it was heavy enough to stay put. I had it happen again about 5 months later, on a different one. I did a thorough inspection & found something. If you look at the threads as they fade away near the bottom hook,..you will notice that some of the threads there start to flatten & are not as raised as further up. I took them all apart & found that some of those flat threads were right inside the enclosed section too. I found this on the two that came undone. I notified Torklift with photos & they immediately sent out replacements. Great customer service.