single bevel broadheads peaked my interest. i tested a DRT single bevel and a Helix single bevel. the Helix out rotated by almost douvle the DRT in my rinehart block target. the DRT has the little bleeder blades that i think impede the rotating effect of the single bevel. the Helix is built stronger than the DRT. both hit with my field points out to 60 yards. i have not tested the Helix on animals yet, but the DRT made a good sized hole in a hog i shot a few weeks ago. hopefully by november i can have more testing done with both broadheads.