Hello people smarter than me. I am working on a project that utilizes a gas shock to open a guard that protects machine components. A very common scenario. I have nailed down my positions for where the shock is mounted, pivot point, shock length, stroke, guard CG etc... I have tried to do the math and my boss has tried to help me as well however I think his math may be incorrect. Before I order the shocks I want to be sure that I know what I need. I have attached 2 photos. one with the guard open and one closed. For simplicity sake assume I am using 1 gas shock. We would like the guard to stay shut by gravity alone and obviously stay open. Guard weight: 87.4lbs http://imgur.com/a/47EFI Thanks so much.