Ok guys that shoot A/C/C's. I'm seriously considering them for next year. Almost to the point where I know I'll get them.

A few questions though.
[ul][*]What size would I need? #65-70lbs 27.5" arrow.[*]How heavy are most of your finished arrow weights, with a 100gr head?[*]How's your FOC with the heavier GPI shaft and a 100gr head?[*]How is the overall durability of the shaft, given the fact it has the aluminum core?[/ul]

Thanks in advance