can help a little. Haven't used quick spins, but 2" Blazers are real close to same thing, especially w/ 8 degrees helical. I can't see any diff in poi at 30 w/ them or Millers 431 gr or the same arrow as Millers w/ a wrap that increases them to 446 gr. I'm sure there is a few fps diff over a chrony, but w/ my poi nearly the same I haven't bothered to check them. Blazers fly the same w/ field points as millers but prefer his w/ bheads as I get same poi w/ both and not w/ blazers [good groups though] I'm just too lazy to resight scope between the two, lol.

I think Hotburn is shooting them.