JAG,
Lots of good advice here. I wouldn’t worry too much about a perceived ‘lack of commitment’ in not joining a MASUAS! OASC are likely to look favourably on any opportunity to develop your personal and leadership skills whether with the OTC, TA or any other similar organization. However, if you apply for any sponsorship, and are successful, you will become a member of MASUAS. (Muppet has obviously forgotten about their last pilot bursar!)
Good luck at Queens.
Duncs