Ditto.

If your arrows aren't flying straight then they aren't flying straignt. Just because a bow shoots field points ok does not meant that it is performing at its best.

Make sure that your broadheads are spinning perfect with no woble at all. If they are and you still get bad arrow flight then you need to start tuning your bow better.

Mechanicals only put a Band Aid on the symptoms rather than getting to the source and curing the illness.