When I was seat locked on the e-120 (my bid was in for crj-200) I was given a letter telling me that I was bypassed and being paid on the crj-200 scale because there were people who were in classes behind me that were hired onto the crj-200. This was all my first year so it was all the same pay for any airplane, but it would seem to me that I was "bypassed" because of a new hire.