> They start with a manual inventory of the configuration in question, type it ad-hoc into a spreadsheet, then go through making manual changes, notes and addit

> They start with a manual inventory of the configuration in question, type it ad-hoc into a spreadsheet, then go through making manual changes, notes and additions until it feels good. There's lots of highlighting, different coloured text, etc like layers of sedimentation. Formulas are only used for sums and counts in an ad-hoc way. Oh man that hits home hard. And all the sums and counts are in random cells "beside" the tables right?