Parametric woodwind key

My tinkerings with baroque recorder designs have finally taken me to instruments where my fingers cannot reach the holes or cannot cover the openings. This is an initial stab at a parametric woodwind key to help me make recorders in tenor (C4) or lower voicings. I'm using PVC pipe and the excellent mouthpieces designed by devangel77b:
https://www.thingiverse.com/thing:5777473

The key does not seal on its own. You'll need to glue a thin piece of neoprene or foam rubber onto the key cap. The included stl is for the low C key of my tenor recorder, but The bass recorder I'm brainstorming will likely need about 4 of these keys with different parameters.

My design goals were:
1. Incorporate a printed compliant mechanism for the spring.
2. Pick a geometry that won't fatigue immediately
3. Allow clamping onto PVC or similar available piping
4. Make a parametric design so that modification for use in different instruments is straightforward.

I welcome input or remixes. Build