If you can shoot well out to long ranges don't worry about it. If you do not plan on shooting past 60 yds don't worry about it if you can shoot well.

It's a matter of howmuch tinkering and extra cash you have if you want to start changingthe spine and FOC of the arrow. If you are happy with your set-up then don't worry about it.

My 12% FOC arrows can hit inside within 3 inches of each other at 53 yds consistently if I shoot right. Most of the time they hit right beside each other until I shoot a flier. So, I don't worry about it.