I totally agree with Sue...
You have to be really careful AO.... Being an AO you probably signed up for a $8K bonus for going into that rating... Since you are would not complete your "A" school, then that bonus is gone.....
Secondly, if you get one of the longer "A" schools, then you would have to extend your present contract to 6 years. They don't give you the training for free....
If my heart was set on MA or something else, then I would do it. Sometimes money isn't even part of the equation.