I shoot a bow that is 55# at 28". Dacron. I draw about 28.5" and like my arrows 29". IF I am shooting POC do I need a 60-65 shaft or a 65-70 shaft. This will be my first time builing my own woodies.
I forgot to put that it is a recurve.
Either would probably work. If your bow is close to center shot, go with the heavier spine. I'd probably go with the heavier spine regareless. I tend to overspine by 10-15# with my longbows cut 1/8 inch from center. Works for me. Good luck.
The degree of centershot and type of bow and point weight will make a difference, too. Figure 56lb + 5 for the extra inch of arrow, + 5 for centershot or 15 for past center. Check Aromakr's Whispering Wind website for a very good wood shaft spine chart.
http://www.rosecityarchery.com/spine.htm
You can go as high 80-85# if your recurve is a center cut recurve. I have a 55#@28" Blacktail that I shoot 80-85# POC arrows out of beautifully. I like the weight of them too.