If you are right handed , and your Arrow NOCK is kicking to the right before it reaches the target, then it's too stiff.
Shoot from 20yards--------------------------->
I would first RAISE your nock point to about 5/8" and knowing your nock point is high, shoot the bare shafts and slowly lower the nock point 1/8" at a time, until you get rid of the nock high flight.
Next, you should just be dealing with the nock left/right of the arrow which is a spine problem.
If it's kicking nock left, it's too weak.
This is how I tune, hope this helps. Also, do it on a calm day, or inside on a range because if it's windy it will give a false reading.
You might try adding a 100grn brass insert or move up to a 250grn point, or both.
Sammy