RE: G5 optic question
mattfish,
If you are saying that after setting up the pins you are running out of vertical adjustment you may have to flip the "L" bracket over. If you did not follow the paperwork you will run into problems. If you do not have the paperwork for the sight shoot me an email with an email I can add an attachment to and I'll give you a copy of the paperwork. I have it on my work PC.
Beside the issue with the pins being overtorqued this sight and pins are far from brittle. If you could contact G5 about your sight and they would take care of you. They are a great company to deal with.