We usually do a rough schedule at try outs in the packet, mostly to figure out a price to tell parents. Last year, we had some EPs cancel the comps we scheduled, so we replaced them. For the most part, it stayed the same, and at the very least the dates stayed the same. We also added one competition that wasn't too far and was cheap. Adjusting the schedule a little doesn't bother me, but I think the key is keeping parents in the loop and not springing it on them.