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Originally Posted by Phil Hodgins ------------
I've heard that suggested before but I don't believe it will work. The BH with the highest fps, will be the lowest one you try. You get more speed with a lower BH, within reason. The chrono would have to measure accurately to well under 1 fps, for any fine-grained variations to show up within the general trend, and I suspect they would be swamped by the "noise" - variations in the average finger release.
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Rik
Using a chrono is similar to the method of watching for the highest vertical grouping on the target as you change the BH. This obviously needs the archer to be able to keep the sight in the same location for the duration of the test.
What your looking for is the point were the bow transfer the maximum amount of energy to the arrow and this may not be the lowest BH. At this point the group will be at the highest position on the target, which should equate to the fastest chrono speed. I do agree that in reality the chrono may not be sensitive enough to carry this test.l |
And likewise, unless the archer has a good consistent form, they won't be able to tell whether the variation in the group position on the target is due to the BH or not... What sort of distance would you need to shoot at to detect sub 1fps variations in speed, from the group position? And how big would the difference be, compared to a "reasonable" average group size at that distance...? And if you're doing something like that anyway, why not just look at the group size? That ought to be a better indicator... I would say that speed is, at best, only a secondary indicator of whether the BH is right. Group size is a primary one - you want the best groups you can get!