...BTW your Bieber avatar is awesome.-Malone
Is that sarcasm? There is specific spot cast into the plastic backing plate for drilling a hole and using a punch on the rim of the sprocket. I have never had any issue getting them off that way without damage. I make sure the mating surfaces do not have any oil residue by cleaning using brake-clean and then torque to 45 ft-lbs. I know of more than one cam that slipped from the factory without ever having been loosened. That leads me to believe the factory torque spec is too low.