Very dissapointed. - Sightmark Mini Shot Pro Spec Green Sight

I was up until one in the morning trying to figure out why the sdjustment screw was bottoming out before I could get the dot over to the left enough. This morning I figured it out. When I tighten it down on the rail, it turns at an angle. Its not enough but its enough to matter to not be able to get it zeroed in. I tried it on both of my ARs on several different rail types and the result is the same. If the part that moved in thats attached to the screw that moves in and squeezes in on the rail was a lot longer it wouldnt turn. Its not long enough to completely span the spacing on the rails. I am rather dissapointed. Im using a laser bore sighter and I cant get the dot on the sight to move over enough to line up with the dot from the laser. Also the markings are back asswards. If I want the dot to go down I have to turn it in the oppoiste direction it says on the sight. Am I doing something wrong? I guess I should have played with it as soon as I got it. I was waiting for ammo prices to come down a little bit. I emailed the company to see what their response is. If I get a good one I will be back to update. Im very dissapointed.
Pros: small easy to mount
Cons: turns at an angle when tightening

This review was written in the old system and had content requirements that are different than reviews written today.