Gotta love these guys on this forum, they can fix just about anything AND do it well. I had the same thing happen with my Yamaha case in 1987, my fix was to take a swatch of fake sheepskin, wrap it in a circle and shove it into the mpc hole in the styrofoam. It has worked well for twenty-five years. Really I should not have had to do that with a pro horn (6340 model was their best back then). Why businesses do this dumb stuff is far beyond me. On the UP-SIDE I just bought a Getzen Custom Series and the case is much more than I was expecting. It is very heavy, well thought out AND has a music pouch and a drop down hard 'platform' inside the to for writing. It is really a piece of work, but it is really heavy and almost overkill. It does speak to the company's commitment to quality though As for Yamaha they still make some of the best horns AND support the after market case industry! What's more to be said? Send the letter to them and share with us their response. Should be interesting.