According to most manufactures of arrows the cutoff for maxima 250 and easton 400 shafts is 62Lbs. It is better you shoot the heavier arrows, as they will help the life of your bow. Also since you asked for a couple bucks more you could have gotten acc pros. All their specs are better than maximas, and they weigh more producing more Kinetic energy than the maximas. Simply put a better product and better performance. Definatly a better hunting arrow, and names don't kill deer... performance will though!