I think I answered this question once:
http://aikiweb.com/forums/showpost.p...0&postcount=17
In short, M.A. learning is a tool which may prove usefull in S.D. situations. Particulalrly if you learn diligently with the right teacher. In this latter case, you may find the changes to self are of greater scope and affect things in more diractions then the simple fght element of S.D. you were asking about.
Amir