In general terms these are satisfactory shafts. I used them for hunting this past season - actually the Terminator Hunters. My justification - I prefer a heavier arrow when shooting at game. At 28" draw length (27,5" arrow) I managed a respectable 261fps from my BK2. The 100 grain Shockwaves did their bit - 3 deer down. Oh yes, full penetration with energy to spare. Just my preference (and 0.02)!