I'll ask the question in a different way. There are versions in the tiny SA Ultra line (ZS-405, ZS-406, ZS-407) that probably differ in hardware. The latest versions of the software are mainly focused on the ZS-406,ZS-407 and are designed for this hardware (I may be mistaken). And now, if you use the latest software versions in the ZS-405, will this update have an improvement in performance? That's the question I'm interested in.I would like to hear the answer to my question from the creator of these devices.
R4ABT