I would like to reschedule my exam date from dec. 29 to the 22 or 23. However, these dates are filled at the two nearest prometric centers. Does anyone know from experience if seats seem to pop open as the date nears? (from others rescheduling). I just wonder how the ADA has it worked out with prometric. I assume some seats are reserved for nbde and some for the dat. I just wonder if they both take up the same openings. Any input?