ORIGINAL: TFOX
As for broadhead flight, accuracy comes in the setup, tuning and fletch. The quicker you get your arrow spinning out of your bow, the sooner and quicker it stabilizes in flight regardless of it's flight speed.
But,you do agree that all little imperfection become much more magnified at greater speeds,therefore,forgiveness has been compromised at greater speeds?
This is my line of thinking. Any little imperfection in form or aim will have a deteriorating effect on accuracy BEFORE the arrow leaves the bow. It is magnified with the "speed" bows.
How many 320+ fps bows do you see at the indoor nationals or the Vegas shoot?