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The reason for using a particular balance point forward of centre is not always clear although we know that a balance point behind the centre line will produce very bad flight, it must therefore be true that how far forward of the centre point will also have some bearing upon the flight characteristics of the shaft.
We accept that on aluminiums the FOC should normally be between 7 and 9%. But since the advent of the ACE and to a lesser degree ACC shafts we have become acustomed to shafts with
12 or 15% FOC.
If you watch an arrow in flight especially on a windy day, you will see the difference. The more forward of centre produces a ‘tail happy’ action with the point dominating the direction where as the aluminium will steer to the target with a nice even arc. I believe that Carbon Tech shafts shoot best in the 7-9% range and ACE in the 12-15% range and maybe more forward than that. Whilst the FOC is not critical at a specific figure it is always useful to know what it is to judge what weight points will best suit your shafts.
THIS LITTLE TOOL MAKES IT EASY!!!
Measure the length of your arrow from the nock groove to the end of the shaft. This is length "L".
Clip the Beiter balance onto your arrow. Using a smooth flat surface, reposition the clip until the arrow balances.
Measure the distance "A" from the nock groove to the centre of the Beiter Balance Clip.
Put the numbers into the formula to get the percentage figure of FOC (Forward of Centre).
Please note some items featured here may not be in stock. However, we should be able to obtain any Beiter product within 7 days from the date of your order.