Rick thanks for the reasoned response. I think you are right that this will occur so its best to start working out things now so we are not caught off guard and one group gets short shifted. To be quite I honest I don't think that working out a master seniority list would be that difficult. Each certificate could have a "bid -seniority list" and the company could have a separate Master list for the purpose of upgrades.
Tony had a great idea that those who had been furloughed because of the buyout would receive the first right of return to whichever certificate had vacancies. It would great if those folks would return also with the longevity that they had as far as pay and probationary period was concerned.