TL several options then
- I misundarstand and/or make things up about the applicable EASA IR-OPS;
- You are not reading the books thoroughly enough;
- The OMs are nowhere near being EASA compliant;
- Some sort of formal trick is in place (separate W&B manual as with my outfit)
Which one is it?
Sabenaboy for Airbus OEM W&B see here:
A320-WBM weight and balance manual ??????_split_1.pdf_?????_????_????_????_????. Yet I think that may be besides your point. The company manual loadsheet, with its reverse prints etc. does not come out of thin air. Its form alone as well as loads of other essential data such as the fuel trim index table need to be formally written down somewhere
by the operating
airline and approved by NAA. Though some companies do not bother their pilots with numerous books; rather provide a simple table / laminated card instead, maybe yours too. Were do you go for the DOW / DOI?
cheers, FD.