ORIGINAL: bigbulls
I just gave you 2 bow reports where extensive professional testing was done. Far more than you and bigbulls do on many more arrow weights and over a larger span of weights too. They didn't find that place! In every single measurement they show increasing ke as arrow weight increases. How do you explain that? Did you even bother to look at the reports?
In the reports the you site the experts conducting the tests are using
industry standard testing procedures. They are
not, in any way, attempting to find the maximum efficiency of a particular bow through a wide enough range or arrow weights. Each bow will have its own range of efficiency and no two bows will be exactly the same. Even the same model of bow will be slightly different.
They don't use any more sophisticated equipment that what is available to nearly any pro shop. BTW, I do have bow force mapping equipment at my shop. I have the capability to produce the exact same charts and graph as the magazines do. The manufacturers, on the other hand, spend much more money of testing equipment than any magazine or pro shop would be willing to spend. For obvious reasons.
I'll tell you what. Tomorow, if I have the time, I will build a couple of arrows as absolutely heavy as I can. At least 1000 grains. I know I have some fiberglass fishing shafts. If I can find an aluminum shaft that they will fit snugly into i will glue them in and build an arrow that should weigh a few thousand grains. I'll shoot them through the same chrono from the same bow and see what happens.
I am curious to see just exactly what number pops up as I have never shot an arrow that comes remotely close to being this heavy. I'll see what I can come up with. I'll even take my general into work with me and shoot all arrows through it as well.