I recently purchased your thumb rest after having quite some difficulty practicing for more than an hour at a time due to the pressure I was putting on my right little finger, and I would just like to express how amazing I think it is. It has fixed everything and I only wish that I had purchased this before my undergraduate degree instead of half way through! It has completely, instantaneously released all the unnecessary tension and force I had been using in the 9 years of my playing. It has freed up my hands completely. I could not be more happy, and I will be advising every flautist at the Conservatorium of Music here in Tasmania, Australia, that I know of, to purchase this without a second thought! Thank you so much!