I shot CX Maximas during 2009 deer and 2010 turkey season. I am liked the extra weight I had when shooting ACC's in previous years. My Maximas were 358 grains, less penetration, my ACC pros are now 398, breaking shoulder and tearing up deer. Both arrows are fine and are both durable however, If I were shooting Maxima's again, I would shoot the maxima hunters or the mayhems for their weight.