A thought. I just re-read the statement my Airworthiness inspector from the FAA gave me - several adhesive labels I could paste and sign in my logbook and the referenced passage in the FARS and nowhere does it even imply that the person signing the logbook is the same person that performed the inspection. Residing, as I do, in a residential airpark, I frequently talk to owners participating in annual inspections - upgrades and repairs on certified aircraft - that do much if not all of the work - using mutually agreeable checklists and procedures. Then with a review and visual check as necessary, the logbook is signed by one holding the appropriate certificate.