As many of you may know, I am a Registered Piano Technician with the Piano Technicians Guild. I have been a member since 2000 and an RPT since 2005.Of the many benefits of membership, attending the yearly regional or national conventions for a reduced price is one of them.Each convention has a wide variety of presenters who talk about many topics from tuning to rebuilding, and at many levels from novice to Advanced.Next year the convention is in Denver, Colorado, and I have been accepted to submit class ideas as a speaker to do a 90 minute class. I can submit as many ideas as I want, but they will only choose one (as far as I know) if they choose one of my ideas at all.So what I need from you is ideas. You know what topics I've created videos on, you know what methods and teaching styles I use, and if you read my posts on Pianoworld, you know some of the other topics I've posted and commented on.So let's have it. What topics do you think would be a good fit for me to teach to a class of piano technicians. Feel free to suggest topics on which I have not made any videos yet, or written articles or posts.I've given thousands of hours of instruction to hundreds of students, but this class means a lot to me and I want it to be memorable. Thank you in advance for all for your submissions.