Regarding W+B being "done"...something I've always wondered (and this is very obviously only applicable to private operations, not commercial) is to what degree this "doneness" is.
My impression was that you simply had to be able to prove that the aircraft is within W+B limits. Does this mean that when ramped you must already have completed documents showing this?
OR
Not have documents but be able to demonstrate it when asked.
The reason I ask is that during training I filled out about a billion W+B calculations for single pilot in a C172 with full fuel. Obviously always the same result. If I was taking the same aircraft now (with no changes to the weighing procedures etc), I wouldn't fill out a W+B, but I would KNOW and would BE ABLE to prove that requirements are satisfied.