BOV's were invented for mum and dad's who want their cars to be quiet, no real racecar runs a bov, particularly an atmo.
That being said, I run one, there was a period of ~2 days where I didn't have one fitted and it sounded super ghey and I kept blowing cooler pipes. My current bov is pretty hard, flutters at low boost and easy throttle letoffs, full boost and a quick letoff and it opens properly.