@k0872 I understand that without the finger-vibrato your Sylphyo doesn't fit your needs, but what's wrong in using your own hand-made controller?
The same update that will improve the tin whistle fingering will also include your suggestions for finger vibratos in the celtic fingering, as well as a long-awaited solution for sax and flute players based on key splits. All these improvements will rely on the same foundations that I have yet to finish writing. There are a few more urgent things for us to do right now, such as the release of the synth extension, but I'll post something here as soon as we have a first beta on this! Are we allowed to contact you if we have doubts or need details on the finger vibrato thing?