Why the hate for IOR? I have one, 2.5-10 FFP mounted on a Larue, and like it. It?s been rock solid, tracks perfectly, and I like the reticle. Granted, it?s not in the same realm as my S&B, but when I was paring down, I chose to get rid of my US Optics before the IOR (granted, for more $ than the IOR would?ve brought). I?ve heard that their service dept is a pain to deal with, but I haven?t needed them. What do I need to know?