Thanks for the help. What exactly do you mean by unwilling high notes? Do you mean that it requires a lot of breath, or it squeaks unless it is played just right (or possibly a catastrophic combination of the two)? The Mollenhauer Denner is definitely an option, too. Is there any way (this is probably a little far-fetched) that I could have some recorders shipped to me so I could try them out, without keeping all of them? sort of like a rental period, or something like that?