I can tell you from experience......if you're going to shoot an arrow at an animal.....shoot EVERY one of the ones you plan on using....WITH the BH you plan on utilizing when you hunt.

I bought a dozen new a/c/c 3-71's last year to hunt whitetails with. Out of those 12 arrows....I had 2 that I could not get to fly right. I could change BH's.......and I still couldn't get those 2 to fly right. I took off the wraps.....re-fletched....did everything I could think of to find out why. I never could.

Exact same everything.....but these two wouldn't group with the others. I still have them....and just know not to shoot them.

I go so far as to number every arrow I get fletched. I absloutely KNOW when I go to stand that the arrows in my quiver are all flying true. I know this because I've shot them all.....WITH THE HEAD I'm gonna be shooting them with (or one exactly like it).

I know in my case....it wasn't the head making them fly errantly. What it was, though......I couldn't tell you.