If you want more diverse representation, shorten the session.
I know someone who served for three sessions and then decided he could no longer do so, because of the continued extension of the sessions. He had his own business to run. He also tried to speak into this and was ignored.
I know someone who served for three sessions and then decided he could no longer do so, because of the continued extension of the sessions. He had his own business to run. He also tried to speak into this and was ignored.