i use 2213s to shootfrom my bow and it is set at 70lbs,i wont to turn it up a bit but these arrows wont shoot str past 70. i saw the fluted arrows in cabelas and they are supose to be 33 percent stronger and liter. carbons i have never shot but i dont like the small dieamater but do like the wide range of bow weights you can shoot with one arrow size . any info app.