Technical Info:

• This spine chart relates to an arrow length that is at least 1″ longer than draw length.
  This is to accommodate finger clearance from the point/broadhead

            Example: 28″ draw = 29″ arrow.

• If however, you prefer to use longer arrows, simply choose the required arrow length across the top of the chart.
• If back tapering the shafts, go one spine group stiffer than recommended.

            If barrel tapering, stay with recommended spine group.

Tuning Tips:

• If your arrow wags left and right that is a good indication of improper spine- usually weak spine.
• For Right handed shooters: If your arrow flight is good, but arrows are impacting left of point of aim, then the spine is too stiff.  
• For Left handed shooters: If your arrow flight is good, but arrows are impacting right of point of aim, then the spine is too stiff.  
• For Right handed, Asiatic  shooters: If your arrow flight is good, but arrows are impacting right of point of aim, then the spine is too stiff.  

-“Broadhead Group Tuning” will give an accurate indication of the correct spine requirement for your bow.

-Contact us for assistance with arrow selection and tuning your bow.    info@trueshaftarchery.com