I have done 7 and 8 appointments per day for several days on tour. These are 1 to 2hrs with maybe 1 that's 3hrs. Some touring dommes do. Not all. You have to really have the high energy for it and the multitasking thing down. Very low anxiety. How I work and play as calmly as I do gives my friends anxiety.

It's very hard. The method of sanitation and bringing extra toys and many sport sheets etc was a whole operation in itself as well as organization. Normally most in a day if not all are regulars so that is what makes it even possible. You're calmer knowing them you've seen them 50 times.

42 is a high # and exhausting but it's possible, I refuse to take a very high amount any longer. I was burning myself out hard.
That was @ 2017-2019. I could see 4 or 6 now but not 7 or 8, with some 2 to 3 session days and (gasp) a day off.