User Error. [cheeky]
Sorry dude, but it's just you.

I've worn the Arai Quantum E/F/II since I started riding in 2000. I've never cracked, scratched, broken, etc a face shield (In fact, I'm on the *same* tinted face shield I bought in 2000 :

, the side pods, levers, or any single thing you've had issues with. I read constantly about people complaining about the shield changing method yet It's never given me a problem. My total repair/maintainence bill is the purchase of a tinted shield and a replacement set of rear vents (~$10).