More importantly, you need to tune your arrow. Arrow tuning involves spine testing, cutting to length from both ends, finding the stiff side for consistant fletching, bareshaft testing and broahead spinning.

The most important part may be before you start. Choosing an arrow that will properly carry a proportionately heavy tip is important for stability and forgiveness with broadheads. The higher the FOC you can obtain, the more forgiving your arrow will be.

In my opinion, picking just any arrow and slapping a 100 gr broadhead on it, does not cut it - literally.