When I shoot the bow from longer distances, the arrow rises into my field of view and it appears that tail of the arrow is not spiralling correctly. In other words, the vaned end of the arrow seems to wallow like a poorly thrown football. I assume the front end is wallowing also but it is not visible. Paper and walk back are both good and the groups are fine but I don't see any improved penetration or accuracy from this high FOC. Am I doing high FOC wrong? Is this a visual illusion? Do I need to switch to a bigger vaner to create some drag on the back end of the shaft? My set-up: 2007 82nd @ 60 lbs/27.5" GT Pro Hunter 7595 27" 100 grain insert 100 grain point blazers
Something has to be out of tune, or like others said the spine is wrong. I don't have the software(I'm at work) to run the numbers. I know my intended setup was going to be pro hunters 7595 27.5-28" can't remember exactly with 125 heads, 15 gr inserts & 50 gr additional weights. Shooting an 07 Ally @ 70# & 29" draw. That spined to be dead on or a hair weak on the software. I figured I can turn the # down a little if that proves to be the case. I haven't started tuning it yet.
You should be able to go with less fletching and obtain the same stabilization with a higher FOC shaft. If the shaft is "wobbling" my first suspect is always fletching contact. If there's no contact then you need to start from the beginning and get the bow in proper tune.
Fletching contact: I was kinda thinking the same thing. I looked and my blazers are showing a small black streak on the right underside. I talked to the tech rep at Trophy Taker and he recommended a lower profile vane. OR moving the arrow and nock upward until the arrow passes through the top half of the berger holes and leaves more room for the rest to remain down. This seemed like an odd recommendation so I will fletch up a couple of arrows with 4" vanes first.
Feathers are "waterproof". You can shoot them dripping wet and it will not affect your accuracy or speed.
Ok. I put some 4" vanes on the arrows and checked for vane clearance. The right hand (closer to riser) vane is contacting the Trophy Taker on every shot. The rep at Trophy Taker suggested that moving the rest and nock point up to midway on the berger hole might eliminate fletching contact. I tried this and I am still getting contact with the right hand vane. The rep sais to go to the top of the berger hole if I still had contact. This doesn't seem like a great idea. The trophy Taker is rising in the last inch of draw. Is it possible that the rest is rebounding to hit the vane? If so, what should I to correct it?
That was my thought from the beginning. I really hate to say it because I'm not one to just throw equipment at a problem but here's a solution: http://www.lancasterarchery.com/product_info.php?cPath=40_117&products_id=8003 Question is, why is it doing it now if it wasn't doing it before? Solve that and you'll have it fixed.
I like the looks of the QAD but I just bought a Chocalate Addiction so I will wait until the 'play' funds recuperate. I have been trying several different rests so it may have been doing it without my noticing. Is there another way to prevent the rebound? Or, at least a way to determine if the rest bebound is causing the contact.
You could put some spray glue on the riser where the rest falls so that it sticks and doesn't come back up. It'd be a one or two shot deal then you'd have some cleanup with acetone to do but it'd answer the question.
