Last year I updated my airplane with an Ameri-King AK-451 ELT transmitting on 406 mHz. I've been flying 47 years with no need for an ELT but an ounce of prevention, as the saying goes. Now I'm beginning to think that a PLB might be a worthwhile investment. Have you upgraded to 406 MHz? Do you have a PLB? Can you tell me what you're using?