to date, and through 6 events, I've not yet had a ball break on my mask. I wear a blacked out phantom Save Phace as does the rest of my team. None of us have had any breaks since we switched masks. This could be a coincidence, but trust me when I say, paint does bounce off this mask. I've had vents, grills, and flex's and I've had bounces on all of them, but this is the first hard mask I've ever had because i wanted a greater chance of bounces.
I say instead of calling shens on a hard mask bouncing, call shens on those who say you need a soft mask to score the bounce.