Difficult to install. easy to lose - Trinity Force 45 Degree M-Lok Mount

I used this to mount a small streamlight on my rifle. I took it to a range and fired a little less than 1000 rounds a day for 5 days. Every single day, this mount would come loose and I would have to tighten it again. What added insult to injury was that it was not easy to install or tighten. I expected to be able to turn the screws and it would tighten up like all other mlok but the screws just kept turning. I had to use another screw diver under the rail cover/hand guard just to hold the screws in place. This would have been a very neat design if it worked.