I started to experiment with AudioModeling SWAM woodwinds, 14 instruments based on Physical Modeling and Behavioral Modeling with the Multi-Vector/Phase-Synchronous Sample-Morphing technique. These instruments are well suited for Sylphyo and other EWI. Unfortunately, Ayodyo people have abandoned development of Sylphyo and started to create keyboard synthesizers. Sylphyo is still a great expressive instrument, and Swam + Kontakt or Omnisphere pads, are excellent combinations. I especially like bass clarinet, it has great range, from C1 Ab to C5 Bb.
I shall add more examples at the link below, just search for "Fjukawka Duch" keywords.

@Friedus Thanks, I wish I had more time to train ... I have now Akai USB, 4000s and 5000, but Sylpho is my favorite, although I miss a decent mouthpiece.

Here are a few examples of the combination of Ketron instruments + Omnisphere for background voices, with great presets from Vicious Antelope:
Strawberry Fields | Yesterday | Lover Man | Scarborough Fair| Christmas: Silent Night: several voices.

See links at my page, search for: Duch Fjukawka.
I will try to provide more examples soon.

Wlodek

5 years ago IMOX tried to create a new mouthpiece, the project was called Photon, but so far they have not released it, blaming the problems on shortage of some chips:
https://imoxplus.com/site/index.php/forum/photon-mouthpiece

@ErikOnSax Indeed, very disappointing. Years ago, they announced some work on a better mouthpiece. Instead, we got another synth, and there are so many (I have DynaSample, Ketron, and Yamaha, plus tons of soft synths). Meanwhile, Chinese competition is now getting stronger, and I am contemplating one of thy new controllers, like Robkoo R1.

I clean my old Sylpho often but the plastic still smells badly. Anyone else has noticed that? Perhaps it is only the problem with the old Sylpho version?

@fcred I have the older version of Sylphyo, can I use this update?

I've just purchased Luftrum patches for Omnisphere, and enjoy playing them with Sylpho. No overdubbing, just straight improvisations recorded with my phone. Although this is designed for keyboards these patches work well with EWI.
https://www.youtube.com/watch?v=gmBdFd_gbmA
Wlodek

Youtube has a number of video with Robkoo R1 demonstrations. It seems to be a strong competitor for Sylphyo. A pity the mouthpiece project has been abandoned and the instrument has not been improved for many years. Instead Ayodyo developed a new synth, but this is a very competitive marked, I already have 3 hardware and many software synths. Sylphyo was unique, but now Robkoo seems to have all features and develops fast.

@TheSongSystem
Sylpho is great as MIDI wireless controller, I have Akai EWI 5000, 4000s and USB but use mostly Sylphyo. You may use any MIDI synth, not just Anyma Phi. I have several synths that are superior to Anyma Phi (IMHO).

1. Yamaha VL-70m with Patchman turbo chip and VL-Wizzard editor (great software);
2. Ketron SD-1000 sound module, little box with 500 great sounds.
3. DynaSample XO-mini, designed for wind instruments.
   and soft synths:
4. Sample Modeling SWAM Saxophones.
5. Omnisphere 2.7
6. Sample Tank 4

You can find samples of sounds generated by these synths on this page.