As far as I can tell there is no way over OSC to tell which params are being controlled by a preset, and when looking in blind preset over OSC, all params are reported whether or not they are actually in the preset. So a preset with AllNPs - Color will report 0 for CMY, even though they are not stored in the preset, so I can't tell if they are at home in the preset or not in it.
What is the correct way to exfiltrate preset param information from the console over OSC?