Checking into this and a few other things as well, right now.
I have a feeling a “weekend” lease is a take-what-you-get situation (short of snowfall!!) simply because there is 2 days of track time. The single day rentals are easier to reschedule, its only because the Sunday on a single day rental (early in the year) is usually still unbooked. When you try to move an April date to later in the year, more times than not, you get a weekday for the make-up date.