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TAC 15/15i Basic Unpublished Information
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<blockquote data-quote="jon.henry755" data-source="post: 495467" data-attributes="member: 29115"><p>That's a deviation of .10 grains which is about 3/4 of a gram. As Konrad pointed out 1 Gram = 15.43 grains. Not to bad if you haven't made any adjustments to even the weight out. </p><p></p><p>All arrows were new, but they were bought at different times. None were older than 3 months old. The breakdown was as follows:</p><p></p><p>(12) - Arrows Late January</p><p>( 6) - Arrows Late February</p><p>( 6) - Arrows Mid to Late March </p><p></p><p>Each group of arrows purchased were from different sellers located in different parts of the country. 12 - from Len Backus (Minnesota), (6) Lakeside Archery North Carolina and (6) Targeteers Archery (New Jersey)</p><p></p><p>Definitely not the same manufacturing batch. I'm still purchasing additional shafts to increase the number of matched shafts in spine deflection to increase my total number of matched shafts within my useable group. </p><p></p><p>By using some slow setting Epoxy or other slow setting glue, you should easily be able to get all shafts to match the weight of your heaviest shaft. Just add a small amount of extra glue to the lighter nocks and re-weigh them. Continue this process of adding or removing glue evenly around the nock until you achieve the exact weight you need. Once you have the exact weight make sure the nock is well seated and let it stand for 24 hours to dry. When finished your weights should be extremely close, which resolves the weight issue. </p><p></p><p>Spine alignment and deflection are the more difficult issues because they require the Spine Tester to identify where the proper stiff side is located. Never think for even one second that it has anything to do with outside labeling or any shaft markings. It doesn't!</p><p></p><p>Each shaft will have a different alignment regardless if they are from the same run batch or not. </p><p></p><p>Jon</p></blockquote><p></p>
[QUOTE="jon.henry755, post: 495467, member: 29115"] That's a deviation of .10 grains which is about 3/4 of a gram. As Konrad pointed out 1 Gram = 15.43 grains. Not to bad if you haven't made any adjustments to even the weight out. All arrows were new, but they were bought at different times. None were older than 3 months old. The breakdown was as follows: (12) - Arrows Late January ( 6) - Arrows Late February ( 6) - Arrows Mid to Late March Each group of arrows purchased were from different sellers located in different parts of the country. 12 - from Len Backus (Minnesota), (6) Lakeside Archery North Carolina and (6) Targeteers Archery (New Jersey) Definitely not the same manufacturing batch. I'm still purchasing additional shafts to increase the number of matched shafts in spine deflection to increase my total number of matched shafts within my useable group. By using some slow setting Epoxy or other slow setting glue, you should easily be able to get all shafts to match the weight of your heaviest shaft. Just add a small amount of extra glue to the lighter nocks and re-weigh them. Continue this process of adding or removing glue evenly around the nock until you achieve the exact weight you need. Once you have the exact weight make sure the nock is well seated and let it stand for 24 hours to dry. When finished your weights should be extremely close, which resolves the weight issue. Spine alignment and deflection are the more difficult issues because they require the Spine Tester to identify where the proper stiff side is located. Never think for even one second that it has anything to do with outside labeling or any shaft markings. It doesn't! Each shaft will have a different alignment regardless if they are from the same run batch or not. Jon [/QUOTE]
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