I am aware of the 00 repeats the previous values ,
And that's exactly what I was hoping for , if it gets ruined , a note off would fix that.
What I mean is that it would only take the D1 being maYbe'd once
in your song, and then it would always
be applied in all instances after that, simply due to the D0 commands that follow it memorising the D1 value from before.
If you moved that whole block of D1/D0 commands into a phrase instead, and then triggered the phrase with a maYbe command, that would help to isolate the behaviour and only apply the full pitch down when the maYbe command was triggered.
But if that quirky behaviour is indeed what you wanted in the first place, then it's of course a different story, haha.
Either way, something strange is going on here with the maYbe and pitch command.