RR: Great explanation of the tractability of bullets. I always referred to it as the bullet going to sleep and this was wrongly applied to why sometimes groups are the same or better at 200-300 yards. It is usually a parallax issue not the bullet wobble settling down or going to sleep.
Back to the OP's question, the slight over stabilization will not be a factor at hunting ranges or possibly not at all. The stability factor in the 1.2-1.5 zone will not cause a loss of accuracy usually, but will cause a loss of BC to varying degrees. The Berger calculator list this.
It's not limited to nose up...
Cross wind affects the bc in a similar (but opposite, I think) manner as gravity.
The wind has greater effect on the center and tail of the projectile causing it to point somewhat in the direction the wind is blowing from.
