Little help please fellas?

Working on my 1st redoak board bow. 66" tip to tip and 64" ntn with a shade over 2" of set. What length dacron string do I need?

Thanks, Dave

Typically a longbow takes a string length 3" shorter than the ntn length. A recurve takes a string 4" shorter than the ntn length.

Thank you, wanted to be on the safe side w/ my 1st.

Dave