OK this is my fist time messing around with 2 blade heads. Do I need to have the blades and feathers in a certain orientation when fletching/nocking on my string?? Any tips will be helpful guys thanks!

I don't believe that the angle a 2 blade head is mounted at will have any effect on arrow flight whatsoever.

I mount my 2 blade broadheads horizontally (blade surface perpendicular to the length of the bow) for no other reason than it is easier for me to focus on the target this way.  The blade doesn't get into my line of sight.

In my experience, probably not. I start with my heads vertical, which I find more pleasing to "look around" when aiming, and usually a majority of them fly fine there. Those that don't I turn a quarter-turn clockwise and test shoot until I find the sweet spot for each. This is with woodies. I'm guessing the better uniformity of synthetic shafts will allow even more leeway. Dave

Thanks guys, I'm shooting CX Heritage 150's and I'll get a flyer every once in a while. I'm thinking along the lines of my form more than the alignment with the advise you guys have given, once again thanks!

I like to align the blades horizontally with the cock feather/vane.  Darned if I know if it makes a difference, but it satisfies my sense of symmetry...

I can screw my Bear or Ribteks on in any position and the arrows fly perfectly.

If you're tuned properly, it's a non-issue.

I've installed mine the same as NDTERMINATOR since I began this business 35 years or so ago. I imagine if I turned them 90 deg. they would shoot just fine but I imagine also that my sub-conscious sight picture would suddenly become a conscious one and say what in the world is that thing out there. Like somebody said it's a matter of how you look at things. Any change to what you are used to doing in "instinctive" shooting can cause unwanted results.  Sometimes it's even something as simple as putting a deer in the sight picture instead of a target. Been there?

Once again thanks guys! Sure does feel good when my arrows fly true with field points and broadheads! All I need is a turkey and then a deer in my "sights"! Thanks again!

Bowhuntingfool,

If you are getting the "odd" flyer in your groupings, try numbering your shafts, and that will show you if you have a shaft that causes the problem.

Should it be the same shaft all the time that is the flyer, put that shaft in the stumping quiver.