What is your draw length and how much weight do you want to pull?
My draw length is 28.5 inches, and I will plan to pull around 70#.
If I can't get up to 300 fps with out having to use a super light arrow, that is fine. As close to 300 fps as possible while not haveing a "too light" arrow(i.e. one that is effected by a large amount by wind a mentioned earlier, or one that is so light it sacrifices penetration) if perfectly fine.
I had no idea the speed preference was going to cause such a fuss.