AMO Bow Length Standard is designated to be three inches longer than AMOBow String Master that braces bow at proper String or Brace Height. Bow StringMaster will carry only the bow length designation. Example: A Bow StringMaster designated as AMO 66” (bow length) will have an actual length undertension of 63”.Bowstring/cable length shall be designated by placing the string/cable loops over1/4” (6.4mm) diameter steel pins. Zero (0) turns of twist are to be inserted in thebowstring/cable before tension loading. Flemish splice strings are exempt fromtwist limitations. Standard tension loads are listed below. Length measurementsare to be taken from the outside of the top steel pin to the outside of the bottomsteel pin after 20 seconds at load.