ORIGINAL: DropTine249
I'm really not that bad as far as spine, David.
Even the guys at my shop agree. Now, I know I'm at the lower end, but still shouldnt result in any limb issues.
Figure, my arrow should accept the transfer of energy from the limbs then string just fine.
You really think I'm THAT un-spined ?
Actually, if those are a .400 spine, your on the limit, (I personally would lean towards a heavier spine, and adjust the tip/length to try to achieve the best spine and FOC I could for improved arrow flight) but the spine isn't what you worry about as much as the weight, since the lighter arrow absorbs less of the energy, the bow then is left to absorb the rest. MANY 70# bows are going to be MOST efficient with an arrow nearly double what IBO is, and then they will be quieter, and not endure near the punishment.
Speed is great, but if you break your bow, or can't hit the spot you're aiming at, then it's WORTHLESS!!!!!