Even better! (For me,sorry) I noticed on the last pre-lim that the 700 was full, and the most vacated position was the 200 ATL FO. Assuming the position notice was correct (340 spots,) it means tons of 50 seat vacancies in ATL. If your number is accurate, that would leave 100 open positions on the 200. If this stands true, it is honestly upsetting how they run these vacancies.
By showing all positions during the pre-lims, they don't show the whole picture. These snap-shots do not include any new-hires. I have many class-mates that left the 200 for the 7-900 because the pre-lims showed them more senior in that position. That assumption is only based on currently hired and trained, available pilots and not on total positions available. If all was fair, the company should list the positions available (including new hire vacancies) on the pre-lims. It should also go without saying, the 7-900 will always be senior.