When bareshafting for a right hand person. A weak shaft will fly left and a too stiff spine will fly in a curve to the right.
HOWEVER
A spine way out of range for the bow may bounce off a riser shelf or side giving a false reading. Because of this whenever doing bareshaft tuning check to make sure you aren't getting a false reading by adding and lowering point weight.A true reading will show weaker as more weight is added or stiffer as more is removed. If 50 to 75 grains of weight shows no change or if it looks like more weight makes the arrow stiffer then you know you have a false reading caused from something else.
