Hand made prints that have a lot of dodging & burning are bound to be at least slightly different but professional printers seem to be able to reproduce complex ‘choreography’ from memory. I referred to this link in another post recently but I don’t think it got much interest but it contains a description that is worth reading:
My guess is those lucky few to have witnessed one of his talks will never forget seeing the demonstration Voja makes of showing a sheet of photographic paper of a H.C.-B., Koudelka, Burri, or Turnley "straight" print, exposed only once with no burning and dodging, held up next to a final print showing all of Voja's artisanry. It is a phenomenal sight to see—and a powerful indication of the degree to which a great printer like Voja has contributed immensely to the expression of the vision of the photographer. I have witnessed Voja many times spend at least one hour of physical burning and dodging of a print. I've also seen him be able to repeat perfectly, like a machine, the exact same gestures and make a series of ten identical prints from the same difficult negative.
As recounted in part 1 Peter Turnley also worked as a printer so I think his account has value.
(Continued from Part I) Voja Mitrovic, Montparnasse, Paris, 1982 By Peter Turnley I recently sat down and interviewed Voja Mitrovic for several hours about his experiences as a printer. Several important concepts emerged from this interview. He indicated to me...
theonlinephotographer.typepad.com
Also Adams, and no doubt others, produced different versions of his famous prints over time — some think that may be partly due to changes in his eyesight etc as he aged,