I spoke with our software team this morning re baud rates and software vs hardware serial - there’s something of an update on that here:
If you’re using features that require 115200 baud or long messages then it’s still recommended to use hardware serial. Software serial may work at that speed, but is apparently known to be somewhat unreliable above 9600 baud, and in particular has issues with long messages (like profile data) or if there’s much other code running in the same program.
Just the normal request(Ping1DNamespace::Profile) approach shouldn’t have any issues with private declaration, because request is declared public. There may be issues with Software serial though, as mentioned in my comment above, and in the code 