I agree with you that everyone has their own management style and each case is unique. As mentioned in earlier post, Mapping is probably the best option, but if Mapping is not possible I will be happy with anything that helps us track table changes.
I think, in small restaurants changing tables without admin PIN is not a problem since you can easily check if a table is occupied or not.
In our case, we have three dinning rooms and it is nearly impossible to track which tables are occupied.
Best regards,