ORIGINAL: Greg / MO
I frankly doubt you're going to have enough shaft to work with on the Black Max that it's going to make that much of a difference.
Since I'm pretty much exclusively shooting fallaways these days, I fletch everything I have nowadays with as hard a helical as I can produce and keep both ends of the feather or vane touching the shaft -- including blazers.
Same here...get as much helical as possible.