best spine?

[PebblePlacement]

60" 45#@28, i draw 27" off the shelf, ff string, 125gr points...
What will be my best carbon spine?

[magnus]

Wood carbon aluminum? Also what is your cut to center on the bow? Listing the bow might help. From what you have listed around 50# spine would be a good place to start.

[bigbadjon]

By the time you cut your arrow I think you will probably need a .600 carbon arrow.

[PebblePlacement]

full length?

[LV2HUNT]

Try the "Spine Calculator" on the 3 Rivers Archery Site. You can download the tool as well by doing a search for Stu Miller Dynamic Spine Calculator. Be warned, it is only as accurate as the numbers you put into it. Accurate numbers in, accurate numbers out.