no one mentioned checking the rest positioning.. shoot paper and if your getting any sideways tear the rest needs to be moved in or out... field point will still fly pretty true but the broadheads blades will catch air and cause the arrow to fly the opposite direction of the tear... tuning tuning tuning...
have a look at the thread I started on this topic. I had the same issue but my montecs were going a few inches low, havnt yet had a chance to move the rest, but the blokes that commented on that thread were very helpful to me.
Yeah so update. I tuned paper tuned didn't fix. At this point I'm gonna get the 300 spine arrows and hope this fixes the issue. To be honest I haven't been shooting at all since last post. Lobster season led to bass season and now we gotta start prepping for the hunting season ( July 20- December 1 ) hopefully the spine issue fixes the problem and them one more round through the paper.