Wow. I think I may have opened Pandora's box with this little dillemma. FOC? Spine? I have heard these things but I'm not to certain as to what they are. Can someone direct me to where I can read up on all this?

As a side note I want to thank everyone for their input on this. It seems the more I get into archery/hunting the more questions I have to ask. Don't get me wrong I love everything about it, but sometimes it can be so darn confusing to me. I'm going to stick with the heavier weight arrows and adjust my sight as needed.