You can take a cheap plastic alto sax mpc. , route 2 grooves in it for O rings, and use on Sylphyo, with a hard reed that will not vibrate..works well..can post pics if needed

as an EWI perfomer that is NOT true.. one can play ppp to FFF so easy on Akai,best to use VL70m or <sample modelling patches or Patchman EWI 4000s patches for the ana synth..100% improvement or Akai's. Also the octaves are much smoother on the EWI and larger range (7)
The Sylphyo is lighter,but not as intuitive to play (for a sax/flute player) as the EWI
EWI can also have wireless MIDI for €100 MIDI Beam & Line & G10 for wireless audio
As the Slyphyo is still a work in progress, future updates I'm sure will make it better..but would prefer the 5 octaves to be in 1 routing/groove

You can take a cheap plastic alto sax mpc. , route 2 grooves in it for O rings, and use on Sylphyo, with a hard reed that will not vibrate..works well..can post pics if needed