Broadhead Orientation effecting flight?

[bigbadjon]

Yes. You don't need a spine tester to do it, altough it saves much time. Just roll the shafts as decribed earlier to find the stiff spot. From there you can shoot an arrow and rotate the nock a little at the time until it comes into tune.

Or you can do like Terry said and buy Easton, PSE,  Carbon Tech, or other woven construction arrows and have little variance around the shaft. A spine tester pays here as well though because in a dozen arrows some are going to be more perfectly matched than others.

Also the worst arrow I ever tested for variance was a Carbon Express, I believe the model was called a Terminator. CX has allegedly put out arrows with 360 degree spine matching but I have not tested the new ones.

[acedoc]

I am curious if any of you guys have a similar experience to mine. 

I have a scenario right now where the orientation of my broad head (simmons tree shark) effects the impact point of my arrow. 

If it's vertical, it's dead nuts middle. 

If I have the broad head is horizontal, it'll impact lower than my field tips, but still in line with my desired POI. 

I am assuming that there is a nocking point issue, but it is very easily fixed with the broad heads vertical orientation. 


Just curious if anyone else has experienced anything like this.

see Ken Becks arrow tuning video - he briefly touches on the bh orientation aspect but i feel its true!

[Terry Green]

Arrow spine is one thing, broadhead alignment is another..... If your set up is tuned correctly broadhead alignment should be immaterial please understand this.  Your issue is not broadhead alignment related period!

[pavan]

My experience with various carbons is limited, but it seems to me that certain types of carbons are very touchy with ASLs.  I had a friend that had flight issues.  Getting back from the target things really showed up.  Checking his spines, they were all over the scale.  He paid no attention to strong or weak side when making his arrows and his arrows were a mixture of old shafts from three different brands to new shafts.  Also, one companies 500, as an example, when checking deflection around the shaft, does not spine the same as another from strong to weak sides.  I explained that he should reflectch the whole works and check every shaft for spine when doing so.  He gave up and went to wood, "At least I can see the strong side with those."  A good spine test is more important with linear carbons than people realize.  With the set of Alaskan tapered carbons that I am using, out of one bow. i tested them by simply doing the bending.  After i got my spine tester, I went back and checked them 8 were right on the nose for the stiff side, 4 were not and needed to be refletched.  Those four had broad heads on them, and if were to make an assumption and did not test shoot them, i could have been up for a disappointing surprise when shooting at a deer with them.

[DanielB89]

I wanted to give everyone an update.  As stated, my problem was most definitely nocking height.  I lowered it just a smidge and everythign straightened out and is now hitting exactly where they're supposed to when I do what i'm supposed to! haha.