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Bare shaft tuning: Your thoughts, please

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Pappy:
I bare shaft tune all my arrows and from my experience  tail left is weak and tail right is stiff  for a right handed shooter, so for a lefty it would be just the opposite . Tail right weak and tail left stiff. Also if it is hitting knock high , raise knock and knock low lower the knock. One thing is this needs to be done at close range,to start, say 5 yards and you need to be in straight line with the target. Also most will hit a little tail high when bare tuning, just slightly so I try to get the knock setting close and fine tune that after I put the feathers on it. One other thing with wood is if you are ordering shafts, the AMO is at 28 inches so if you have shafts that are 50/55's and  cut them to 27 they will be stiffer by about 5 lbs but if you cut them at 29 inches they will be 5lbs stiffer. Each inch shorter or longer will weaken or stiffen the shaft by about 5lbs. AMO is shaft at 28 inches with a 125 grain tip. Heavier or lighter tip weight will change the spline also but not as much as length so I would use tip weight to really fine tune. I tune all mine with 160 grain because that is what I shoot . Also just FYI don't try to bare shaft with a broad head, just won't work. Sorry Pearl, not trying to be a know it all but this has been my experience.  ;) :)
 Pappy

PEARL DRUMS:
I'm getting very good results for doing it backwards, and so are you. That seems odd. I found this on the TSA website. Makes it simple.

WhistlingBadger:
I think Pappy's right.  Pearly, I think your chart is backwards (or maybe it's made for a lefty???).  If you look at that chart backwards (because I'm a lefty), I believe it's saying I'm underspined, but everywhere else I look seems to say I'm overspined.   That actually makes a lot more sense to me, since I'm shooting off the hand on a bow with a 1 1/8" wide handle.  Shooting with the arrow a little over 1/2" off center would seem to call for a lower spine.

Look up Clay Hayes "Tuning 101" video on youtube.  His stuff is really helpful. 

I ordered a test kit from Wapiti.  They give you two shafts of each spine weight:  35/40#, 40/45#, 45/50#, and 50/55#.  My plan is to self-nock one of each weight,put a 145 gr. field point on it, and shoot it a few times bare-shaft at five-10 yards.  Then I'll take the weight that seems to be flying the best, fletch both of them, and fine tune the length according to Hayes' instructions.

Once I get that far, I'll know what spine to order, and I can fine-tune each set as I build them.  It's a plan.
Thanks for the help, gents!
Thomas

PEARL DRUMS:
Well, start your testing and see what you come up with.   

WhistlingBadger:
Yep, I'll keep you posted.  Should be interesting.
T

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