I've only been shooting a traditional bow for 17 years (wink), and haven't put a string on my longbow in about 6 years, so it's time - but I can't for the life of me recall what the "standard" string length should be for a certain length bow. I shoot a 65# Martin ML-14, a straight-ended longbow, 68" length. My old string measures about 62" n/n, but that sounds short. Is that about right? I need to order a couple of new strings right away - I've violated the cardinal rule of always having a spare and the one on the bow is looking pretty frayed at the nocks. Help me out here, and thanks.