My understanding of the CSRB, captain's bonus, is you are only disqualified for the grad school if you are already enrolled in Advanced Civil Schooling. Also, the Army will not pay for a 2nd degree in the same subject. If you had a masters, or got on on your own, I think you're still eligible for the bonus. As a 2LT you should be too busy to do a grad degree part-time though, but that is a different discussion.