1. don't brake hard.
2. since 1 might be difficult...stronger magnet. make sure the round portion of the magnet actually has a solid magnet in the middle of it. I have seen some where the round "holder" portion is installed, but then the magnet is not actually placed in the middle. So you would see a round metal piece with a screw in the middle.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).