Thanks for your impressions. Isn't the NiceHCK Traceless the same as the Vido? Perhaps the different Vidos have different tuning, but not sure if unit variation plays a part.
It should be the same as the Nicehck red and blue version? but it sounds different from the regular vido to me, at least the blue and the black version i have. The traceless seems to have a more neutral tuning and slightly better clarity to me.