First since you've only posted once.,re-join this forum under a different Avatar (handle). Pretty pilot is not going to get you taken very seriously on these boards. Regarding your question, if you can stay at Comair working and build your flight time, do so only if it works to your advantage regarding getting a FO slot with less time than someone off the street. If working in your current job impedes your getting your hours quickly, leave, build your time (instructing) than apply to all regionals. Talk to the chief pilot at Comair, tell him what your trying to do and see if your current employment with Comair will help you even if you leave to build hours. Good luck.