Buckfevr,

Actually, yes I have to some extent. However, my grain scale is on the fritz (no offense Fred) and I don't want to report inaccurate numbers. I could use Bow Jackson's website but then those arrow weights would be estimates and not actual. Spine, in and of itself, has not been something I have tested for specifically however it does relate somewhat in that the different arrows I am using for the different test weights are of different spines.

But, I can summarize to some extent in regard to arrow weight. The MM is somewhat typical in the sense that it will shoot mid to heavy weight arrows (Over 6.5 grains per pound of draw weight) at roughly 1 fps for every 5 grains. However, once you drop below 6.5 grains per pound of draw weight then the speed increases to around 1 fps for every 3 grains. That is with a 70 lb peak draw weight model....30 inch draw.