Originally posted by Feather Flinger: They shot great with a standard insert and 175s but my arrows were only 470 grains and I really want them over 500. I'm trying to get them to shoot well with the 50 grain insert and 175 point so that's why I've been trimming and experimenting. The 28 1/2" and 28 3/4" bare shaft the best but 29" and 28 7/8" shoot the best fletched.