The Issue: The P6 Sequencer does not send Start/Start signals to connected MIDI devices. The P6 sends the clock, but not the Start/Stop. This, of course is an issue for guys like me who want to sync-up and drive external drum machines using the MIDI out port.
Sequential finally weighed in on the reason:
"The Prophet 6 does not have a CC or NRPN for sending start/stop messages for its sequencer. It's not implemented in the MIDI spec for the device though I will tally it on the feature request list. I hope this answers your question".
Best regards,
Sequential | Oberheim