I used an exposure record sheet for LF. It has just payed off as I have identified a holder with a light leak. It is also a method to track my developing process via the ZS which saves testing. I can go back and review the highlights to compare placement and print detail. Maybe it is an engineer thing but I think it is important to me.

Mine has the zones, a bellows factor, and I have added the reciprocity chart for adjusting.

David