LeadSled:
Remember (see Annex X, Vol. II) in this case the use of the call sign is the accepted substitute for "over" or "over and out", phrases that many current pilots would never have heard used.
No! "Over" means "I am expecting a reply", "Out" means "I am not expecting a reply" - so the reason people haven't heard "over and out" on the air, except in badly-researched TV and films, is that it is two conflicting meanings: Wrong!!!
Callsign substituting for "over" works fine.
When I got my PPL the radio course was separate, and ended with an exam to get the radio licence, which consisted of pretending to fly a series of routes while the examiner in the next room acted as ATC. Using the correct procedure (including not reading back items that were not mandatory, except for clarification) was necessary to pass the exam, and I see no reason to depart from what I learned then, any more than I would make up new ways to fly having got the PPL itself.