Beryllium is toxic if aerosolised, when solid the metal should not present a danger to you. Nonetheless it would be wize to wear gloves when handling this alloy.
I agree with those who say try it out and see if the small defect has any effect on the sound. If not just use them.
I agree with those who say try it out and see if the small defect has any effect on the sound. If not just use them.