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30" is not a draw weight, it is a draw length. It is the length of the draw from the bow to the string when the bow is drawn.
String is 98.5 and cable is 41.5 It varies by draw length, this is for 28" draw
38"
the opposite woiuld be to open the curtain
you draw a rectangle then do a checkerboard pattern line then color it the way you want remeber todraw the string on the end