ORIGINAL: opjose

It's not so much a matter of "buying a good one" ( though there is never anything wrong with that ), but one of proper installation.

No matter what you purchase if it is improperly installed, it can be dangerous.

I've seen this happen with some nice high end spinners, where the user made the mistake of cracking the back plate.

Fortunately no one was in the line of fire, so to speak.

There should be no stressing forces on a spinner, be it aluminum or plastic. If not something is wrong.