This has been a great thread.Not only was my original question answered Ihave been able to learn a little as well. You folks seem to know your $&*# although withdiffering opinions which is great. Maybe I will just keep using the off the shelf Eastons as they fly just fineand I am guessing that they will do the job. The Pheonix shoots better than I do anyway, just like my guns. Oh Yeah, the Easton site says 10.5 grs per inch, 43grs for the carbon insert and 37grs fot the nock.I could have sworn the box said 400gr. Must have been a brain fart.