I had a 6.5-06 built last summer. I was originally planning on doing the AI, but a couple of guys here told me not to waste my time, that not much would be gained over the non AI. So I did some more research and found out that the 6.5-06 has the least amount of improvement of all of the AI cartridges. That you would see very little improvement until you shoot 160's. I decided not to go w/ the AI. No regrets, the little rifle is a rocket launcher.
I think that the AI version is sexier, so do what you gotta do.
I am using the Hybrid 100V. Meters very nicely, and shoots consistently.
Keep us posted on how it goes. Good luck, Steve