No need to offer apologies in any case. You post taught me a lot. Reloaders do what they do because they hope it makes a difference. If you are getting that many reloads on your brass and see no degradation as you go, I doubt annealing will help.
My Savage 30-06 Model 116 FCSS (Accu trigger & AccuStock) with a sporter 22" barrel shoots .38 inch groups at 100 yds with hand loaded ammo. I just picked a load and didn't tune the load to the gun. Varget 45gr/178 gr A-Max/Win LR primer. Pretty good for a $600 gun + $150 Scope.