Re: what would you do?
A simple and practical suggestion:
a. Ask you teacher.
b. Ask another Shodan to come to class, and demonstrate more realistic situations, higher intensity etc with him - to keep things safe.
c. You can extend b, and ask your students to suggest situations for you two to show
Note, b&c the above assumes your Aikido really works, and people practicing other M.A. would have said the same thing watching you. Are you sure of this?