bulldozer, I`ve been checking every now and then to see if anyone answered your question. They haven`t, so I`ll make a stab at it. I`m gonna assume that you are (a) a new hire, who probably worked pretty hard to get your job and (b) you have been taking military leave, which you are certainly intitled to do and (c) your chief pilot has given you a bunch of crap for so doing. When I was a NavCad (that`s a navy cadet, an extinct item now) the flight instructors could issue a "headwork "down. That is, cause you to fail a flight for not using good judgement. In my opinion, anyone on probation should try and blend into the woodwork, and becoming unavailable because you want to go and fly with the Guard or a reserve squadron, even you are within your rights to do so isn`t using good headwork. Don`t make waves.Probably not the answer you wanted, but we live in the real world not the perfect one. This advice comes to you from someone has done both the military thing and the airline thing for about 40 years.