Real surprised! - Sightmark CJRK Tactical Rifle Scope Mount

I was looking at night vision scopes when a friend ask me to mount a scope for him. It was a sightmark photon XT with this CJRK mount. He wanted something he could take off and change to other optics easy. I am a old guy and a bit skeptical. I said it would maybe get him close but I did not think it would work as good as they say. I mounted it and sighted it in and before he left he said since I was wanting to buy one to keep his a week and see how I liked it. (Talk about lucky) Well after taking it off and putting it back on 10 times and playing with his scope I ordered the same set up he had. The most I ever had to adjust the zero at 100 yards was 2 clicks but most times it was right on.
Go easy torqueing the top rings. I used 23 lbs. His was fine but I noticed a couple small cracks on mine by the screw holes. I called sightmark and they sent me new rings. I was not sure if it was my screw up because the instructions did not give a torque amount but I was very pleased with the way sightmark handled it.