Saturday Long Run - 22?

We are meeting at Shawnee Mission North High School for the next two weekends at 6:30 a.m. Our schedule calls for 22 miles this Saturday, but due to conflicting events and some modifications to individual schedules we aren't sure who is planning on going that far. Please RSVP by Thursday afternoon if you are planning to run 20 or 22 miles so we can flag our course and set aid stations accordingly.