Hi Ray, I know how confusing all this can be. My husband had DBS in June, and to get information I have been on the phone with Medtronics numerous times. Since Parkinsons patients rarely turn off their stimulator, disabling the magnetic switch has very few drawbacks. If you have Medtronics' newer models the Access Therapy Controller can turn off the stimulator, and back on again, even with the magnetic switch disabled. If you do not have the controller (looks like a large, oldfashioned remote control), you would have to see a programmer every time you need a medical procedure where the stimulator needs to be off. Good luck Trauti ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn