The HHKB was a Niz Purple Hybrid as a Topre stand-in — flagged as a "proxy" in the methodology but the name was still HHKB, which was misleading. Swapped it for a real HHKB Pro Hybrid recording (CC0 sample from grcekh on Freesound).

Unicomp was outright broken, a single file mapped to every key, which is why it sounded very wrong. It now uses the bucklespring recording from the Model M entry, which is actually authentic because Unicomp builds these on the original IBM tooling. Both fixes are live now.