TFOX,

If an arrow hits at the same elevation but 5" to the left (I'm left handed) of a similar arrow does that mean it is a weaker spine? The reason I ask is I have been shooting older CX400's and recently went to CXL2 Selects and they hit to the left every time. My archery software says both arrows are optimally spined but obviously something is not right.

Thanks,
Don