Perhaps we could organise this FT 'do' as a tennis day, with those attending actually watching the tennis (I might also bother to watch a bit of tennis, with an occasional "out" or "fault" call being made) and then we could wander off and play it by ear at the conclusion of play for the day.

(Sidebar: the way they work us, we have five squads of line umpires covering three courts, and three of the squads will be tasked to finish their courts off - so if they get a stack of 5-setters, they can be there rather late, likewise if they get a stack of 3-setters [for the men] or 2-setters [for the women] they could be finished early - so a finishing time is impossible to say. Rod Laver Arena will have two squads covering it, hour-on, hour-off, with night crew taking over at 1900. We get our court allocations when we get there in the morning.)

Dave