WILL SPINE INDEXING YOUR ARROW SHOW THIS MUCH VARIATION ON PAPER?

I’ve been having more troubles tuning my Triax (previous post about crazy high poundage).

Setup:
28" draw
75 lb peak weight
Easton axis 300 match grade, 27.25" carbon to carbon,
Arrow 480 grain total, 100 point, 50 insert.

My groupings have been terrible past 30 and I suspect improper arrow flight.

Took a bare shaft to paper and after making some adjustments I was finding the arrow shot better nocked one way that the other. You can see by the picture the tears labeled "1" were oriented in one way and a "2" oriented the other way. You can see the tear goes nock right on the 2’s.

I know there is still significant tear on both orientations but the difference was repeatable.

Any thoughts? Thanks in advance

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