If you are offered a CJO at an interview but still have time to build, do you have to pick an airframe/class date at that time, or can it wait a month or so? I'm trying to figure out whether to go crj or e175 west coast (SFO>FAT>SEA>LAX). Is the reserve time shorter in all west coast bases on the crj? Are senior FO's transitioning over to the e175 now that the schedules are better? Meaning relative seniority progression for a new hire will be better on the crj?

Any help would be appreciated.