I was away for a few days and i posted about switching to lighter arrows and this is what my archery pro shop owner gave me that

Shot out of a30 inch draw and 70lbs that
a 488 grain arrow shot 76.2 kinetic energy
a 302 grain arrow shot 74.8 kinetic energy
i am not sure of the fps diffrence but i know in my bow i was useing the goldtip 3555 with 100 grain tip at a27.5 draw at 70lbs and shoting 313 fps and switched to the goldtip ultra lite and know i am shoting 386 fps that is much better for that longer shot if needed in my book.