My student has just finished printing her first wedding, 35mm, and 10 rolls of film. She has been carefully working towards a darkroom management system whereby she wastes as little as possible, its a money thing where she gets paid so much and has to produce the prints for a set price. If she uses a lot of paper, chemicals and time, she makes little or almost no profit. She actually underquoted for the job and realised once she was processing the films that it was going to be tight. I sort of guessed she had underquoted, but letting her do it her way is the best lesson. She managed to actually come out with a small profit and that was with real world accounting, not fudging.
Contact sheets of each and every roll, she did set subjects in batches, bride out of car outside with fill flash switch to indoors mode for Bride inside and flower girls Switch to indoors mode Bride and Groom White dress and Black suit. Switch to printing reception and formal pictures on lawn, reception proper, etcetera.
By doing it this way, one can regulate, within reason, the wastage, because once youre in the groove, you can print like crazy and it works.
For every four 5x8 prints, she had one full test print and nailed three out of four on the second attempt. This included burning the white dress, dodging the dark suit and keeping the bride the centre of attention in every frame. This is as close as it gets to perfection for one newish to doing darkroom work, without any kind of supervision. I also consider it close to perfection for a lot of seasoned darkroom workers, as well!
For myself, I just went and checked my 50 sheet box of 12x16 paper, which is for my really good stuff. I have used 43 sheets in eight sessions, which means I have printed 8 different negatives. With these eight different negatives I have two perfect prints, or at least what I call perfect. The average is 5.4 sheets used for each negative.
I always work from a contact sheet no matter what the format. With my contact sheet I can pretty much determine density, grade and possible burning/dodging. I make a full sheet test print first up at least ½ the time. Ill do a ¼ stop density wedge when Im not too sure for the rest of the time, then its usually a full sheet print straight after a density test.
With my current set-up, Im using three types of film FP4+, Neopan 400 and Tmax100 and two formats, 35mm and 4x5. By being methodical I can switch from one film and/or format almost seamlessly.
I have standardised on scratch mixed D76 1+1 for many years now for all film developing, this also helps.
Mick.