I never shoot a broadhead at a deer without first shooting it into dirt a few times to make sure its flying correctly.
Then I sharpen them again. I have used zwickey deltas for decades; and they are easy for me to sharpen; this year I decided to try the grizzlies.
I got real depressed over the difficulty I was having sharpening them; and until I got them shaving sharp; I didn't put them in my quiver.
I use a mill ba$tard file; and a new one with each dozen heads I buy. I have used a small diamond shaped file on Zwickeys; but the grizzlies seemed to demand the mill ba$tard file.
Sharp is how we kill game. Yes; you can use a field point and kill any animal alive- but its not legal or ethical. What we want to do is make a lethal wound that doesn't stop bleeding unless it didn't hit anything lethal- anything.
My arm is shaved off pretty good; and it always grows back; and I always have my arm with me to check how sharp my broadheads are- and I can easily carry a file when I hunt.
I did shoot one buck with a stone head; although I really had no idea I was going to until it happened ( trust me on this).
The wound from the stone head was the most ghastly broadhead wound I have ever seen. But no- I had not ever shot that arrow with that head in practice.
At one time- not that long past; eye surgeons used obsidian to operate with as it can be made sharper than metal... thats what an eye doc told me anyway.
I would not though shoot any broadhead without sharpening it- and making sure you can shave with it. People like to check sharpness with their thumb; and I have had people cut their thumb without realizing it- and saying the head was not sharp
Its worth the practice and the cost of a few broadheads to get good at sharpening; and I suggest a mill ba$tard file- 10 or 12 inch.