How many folks are running QL? If you are running QL what do you look for? Do you look at barrel time, powder fill to %burn? I know there is a lot of info in QL and I have had mixed results, but barrel time seems to work fairly well but not always. Just wondering if there are any other things to look at. I know in the end the rifle says what it likes and QL is just a tool. Thanks for any insight.