Been there, huntin_sparty. Those Woodsman and Snuffers sharpen best with the file but as mentioned here, even steady pressure with file.
15 strokes (depending on blade condition), then 10, then five, then 3, all flat across both blades at a time and continually rotating between sets. When complete at three, move to very light pressure, 3 times each round, then 2, then 1 repeatedly until burr is gone. At this point this broadhead will be sharp. Clean it up now by using light pressure with a quality steel, very little pressure. Final polish with leather strop treated with Jewellers rouge and then cardboard. The blade will be gleaming, and will shave hair. It will all fall into place and you'll get to the point that you will know the sound and feel of sharp.