My wife used NAP Hellrazors last year with great success. The cut a good size hole and penetrate well. She was pulling about 50lbs and got complete penetraion on a 200lbs field dressed buck at 30yards. It was a pass through but it did stick out the other side which isnt bad for hitting some heavy shoulder blade. Montecs are good, but the hellrazors are a 1/16" larger cut and come sharpter out of the package.