Kind of an odd thing, but not all schools that are "approved" for VA bennies can get you reimbursed for all of the ratings that you may want.
I found that some schools were approved for commercial and instrument, but not for CFI, CFII, multi, and ATP. Others were a combination of the above. Only a very few were authorized for all ratings.
So if you are interested in going all the way with a professional pilot program, be sure and ask if the ratings you desire are approved.
This was 12 years ago, things may have changed.