Sam, when I show people how to sharpen, I go from back to front on all edges. Depending on the head, i may reverse the head and go from front to back. I also switch hands and gain a stroke by filing left handed when I sharpen from back to front on the away edges myself, most folks are not coordinated that way. With certain heads it is easier to file from front to back. If I am only using a file and going for a smooth file edge, like on a 145 Ribtec,(they love files) I will go from front to back, preserving the cutting teeth on the away side, depending on left wing or right wing arrows. I often like a light serration that cuts into the arrow rotation. I made a bunch of single bevel Hills years ago when Grizzlys only came in right wing for left hand fletching counter clockwise rotation. That big ferule can get in the way of the file with Hills, filing into the blade can give a more predictable cutting angle, especially with the 140 grain Hills and it helps to shave a flat spot into the ferule when doing it. Once the single bevel is hunting sharp i apply a light serration with a file with the round safety edge,(they have a single row of teeth that stick out on the corner) on the bevel side of the blade, which preserves the cutting hooks on the flat side of the blade. More blood on the ground quicker. Lots of variations work, not something the OP was asking for he seems to be looking for something more ready made, but this stuff is really quite simple.