Dear Mr. Kooiman, now that I have had an opportunity to use the new parts to your thumb rest, I think I can speak to its effectiveness. Both the new thumb “casing” and the padded thumb “plateau” provide a better “fit” for my hand. My hand “posture”
feels more natural. Making the clarinet feel more apart of the hand or an extension of. It is a definite improvement making it easier to “set-up” and get use to. Thank you very much!