Feather to nose anchor adjustment to affect arrow impact?

[RK808]

I've been experimenting some time with one of my anchors (feather to nose tip).  I'm left handed and shoot cock feather in. I notice the more I spin the feathers clockwise, the more I can get the arrow to strike to the right.  And if I spin the feather more counterclockwise, the more I can get the impact to the left.  I typically shoot instinctive with three fingers under (I do not typically see the shaft in my vision when shooting, except on further shots past 30 yards).

I guess this is slightly and consistently changing alignment which makes the impact different.  
Just wondering whether I'm crazy, or whether others have experienced this sort of thing or use it as well.

Thanks, -Ryan Kohatsu

[JR Williams]

Ryan,

 First off, I can't wait to see you guy's video, it looks good.

 I have not had the same experience as you. I am currently shooting she same shaft with some Left helical, and some right helical arrows (I just got a new RW Clamp but I am still shooting my older LW Helical arrows) anyway, I have no POI shift between them. While I was tuning I turned my arrows little by little until I had no contact, again no shift in POI.

 I wouldn't think that your POI shift would solely be on your feather position but would more likely be due to interference between your feather and the riser.

 You can check this out by spraying your riser with aeresol foot powder and then shooting your arrows and looking for signs of feather impacting the riser, keep doing this until the foot powder is undisturbed. Hope this helps.

 It could also be that as you are trying to gain the same anchor as you are rotating the feather around to different positions that you are slightly changing your form. This could also affect your POI.

 BTW, I shoot 3 under, instinctive, cock feather in also.

Sounds like a spine and clearance issue.

As for not seeing your arrow until you get past 30 yards?  Well.... ummmm.... well... you might want to reconsider, and examine the extent of peripheral vision.

[Molson]

Ryan it sounds like you have a very consistent shot.  It only takes a little adjustment left/right on a bow sight to move the arrow impact.  The sight itself doesn't change the impact, but how you hold in relation to the sight does.  It seems that moving the feather creates that same result for you!

[RK808]

Thanks guys!
I did have clearance issues on a right helical, but seems to have disappeared with a left helical.

Molson has the idea of what I was getting at.  It is almost like using the feather as a sight.  It has come to the point that I shoot every fletched shaft and tune the nock position to the fletch to get the right alignment and shot impact.  Thought it was just a fluke, but I guess as consistency improved over the last year, it has become more apparent.

I'm actually fairly new at traditional bowhunting.  Only dedicated to it in the last year or so and dabbled in it here and there in years before.  Just couldn't figure out how to get decent accuracy.  A lot of the stuff I've read in here has helped dramatically ... TradGang what a great forum!