ORIGINAL: bigbulls
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 knowI 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 whatI can come up with. I'll even take my general into work with me and shoot all arrows through it as well.
Spine issues will most likely give you false findings,spine must be on for an arrow to absorbthe maximum amount of energy to give you accurate findings.
Tune makes this kind of research very difficult.