Very good points.
As Lisa points out below, some Ladies have amazing energy, both physical and emotional, and can seem as fresh at day's end as at their first appointment. Some are just naurally "morning people," and some are "night people," and the night people may be better later on, even if they've had appointments all day.
Whether the Lady is local or touring, I think that she (and her agency) bear the responsibility to set reasonable schedules, so that every client can have a good experience. Especially on tours (or at the end of the month when rent is due
, there is a temptation to grab every $$ the market will bear, but in the long run this leads to poor reviews, lack of repeat business, etc.
I know that if I have a bad experience, I'm unlikely to repeat (or to see another Lady from the same agency, if she's not an independent). Time of day is not always an indicator, but on multi-day tours, I do try to avoid the last day or two - there is no avoiding some degree of burnout with crowded schedules over multiple days.
Especially with some of the agency gals, it can help to check around. We had one earlier this summer who was only here for two days, but a quick National scan revealed that she had five days in two other cities leading up to MN, so she probably was not fresh as a daisy when she arrived. I didn't see her for other reasons, but I would be leery of seeing ANYONE on Day 6 or Day 7 of a three-city tour.
One anecdote ... I saw one touring Lady late in the day, because that was the only time I could make it. I was her 5th or 6th appointment of the day, and I was a little concerned about how she would be feeling. It wound up being incredible for both of us, and I was surprised. As we were chatting toward the end of our time together, she mentioned that every single one of her dates before me had been 1-hour long, and had consisted of chit-chat, then a little kissing and caressing, and then her demonstrating her exceptional oral talents for the rest of the hour. In other words, she had been getting worked up all day, but not one guy did anything for HER. Two hours and a little BFE attention allowed us both to have a fabulous time 