KEEP YOUR CURRENT JOB!!!!!!! If you get the Guard SUPT slot you can accrue seniority at Mesa while you are on active duty for 2 years completing training. You can gain all the experience you need in the Guard. Once you are mission certified you could probably do well by flying half you Mesa line (in order to keep medical benefits) and getting 20 hours/month with the Guard. That would be a far superior QOL to what you have now. You'll have the best of both worlds; the Guard network and good paycheck, 121 experience and the network as well.