Well, I prefer wood for the wood bows, but nothing wrong with aluminum. There are some pretty good articles on fine tuning archery tackle. But not to confuse the matter now.
Spine is measured at 27" for AL (I think) and 28" for wood (that I know). Increasing the arrow length has the effect of lessening the spine or stiffness. Similarly cutting the arrow shorter than the spine length makes it stiffer or increases the spine.
Yup, make my own arrows. Not real great ones, but they fly good enough for me.
G'nite Sam
G'nite HH
I'm going too. Gotta get some stuff ready for tomorrow's school work.
Night all!