Good point on the ability to accomplish 20 AD years and returning to your civilian gig with accrued seniority.
*Would be awesome if you were at your preferred destination (airline) and it didn’t disappear/go under. To have a preferred job waiting at the end of your military career that you enjoy is no small feat.
Not a feasible endeavor by any account (getting to the Big League takes years normally, you’ll be closer to 50 or beyond when retired after 20 AD in most cases and hopefully still in good health), the monetary loss would be rather significant comparatively to the military compensation. Definitely showcases an individuals willingness to serve others than themselves.
I understand the initial point was the legal aspect/ability to do 20 AD years and it is a very good point, I was just highlighting the obvious. A lot happens over a 20 year military career.
Doing the 8 year AD requirement is definitely a good option. That is a no-Brainer if your current civilian outfit is good now and remains so 8-10+ years later til you retire. Not bad insurance if the economy were to tank... again...