What would you do??

[Blessed_wth_Triplets]

We booked a bounceback trip for next September...but I'm wondering if I should switch the days according to how we got our Ding for this past trip. For this past trip the Ding said we had to travel Mon - Fri. Do you think that's the usual? I booked a Mon - Sat...but am wondering if by the time a Ding roles around it won't allow Sat. travel and I'll have to switch my reservations and it may not be available? What to you all think..just trying to plan ahead. Thanks!