1. What advantage will tuning give me? 2. How do I know if my AR (AR-10 and AR-47’s) need to be tuned? 3. How do I know (diagnose) if it’s a gas problem or a recoil problem? Assume all rounds are factory, or if handloaded, are safe and under max loads. I don’t want to beat up a gun unnecessarily. Thanks to all who reply. And please, provide reasoning for your suggestions. I don’t mind an argument. But I’d like you to be able to provide actual support for your arguments.