Casio CZ/ VZ/ FZ - Pro Series

See comments below.

--- In CZsynth@yahoogroups.com, Daniel Forró <dan.for@...> wrote:
>
> Sometimes problem is in the MIDI buffer in the instrument, and the  
> only help is to make longer time delay between SysEx datablocks  
> (starting with F0 and header). Which is exactly what some software
> for sending MIDI SysEx data allow to set.

I agree that small midi in buffers in gear can cause problems, but given the details of the specific problem here, I don't think that's the issue.  The fact that midi-ox receives the sysex mode change command but the CZ does not respond to it leads me to believe it is not the usual buffer overflow or sysex data too fast error. 

Steve