Originally posted by Easykeeper: Your spine may or may not be correct but even a fletched arrow that is not the correct spine should fly without a lot of fishtailing. Fletching is very good at stabilizing an arrow. I would look at your release, follow through, or contact between the arrow or riser.A good summary of the bare shaft tuning process is in the link... www.acsbows.com/bareshaftplaning
Originally posted by Bjorn: Side to side movement is often brace height.