Get in touch.
I've got an extremely full schedule spinning a lot a plates while juggling. I read and appreciate every e-mail I get. I take to heart your input, feedback, ideas, and criticisms. However, due to my very full schedule and limited time, I cannot reply to every e-mail, and those which merit reply may take awhile.
I especially would like to hear what lessons helped you the most, what teaching methods seem most effective, and/or any requests or ideas for future lessons.