If his chrono only said 298 he might wanna get it checked. Theres absolutely no way in hell that a bow with an IBO of 340 will shoot at 298 with only a difference of an inch on DL and 6 grains on arrow weight. Sooooo what I'm saying is 298 at 29" 70# is a lie to me. Is he a Bowtech supporter? Cause this would make much more sense that way.