Yeah, it's all OK 99.999% of the time, then one day, someone starts talking to as you are breaking it down, and you forget to tighten. You take the counterweight of the the bar and watch as you scope goes swinging around and as you still have the counterweight in you hand, your brain has a seizure over, do I drop the counterweight on my foot and catch the scope? or do watch the scope go crash and save my foot?