I've been pushing the Strymon Timeline very hard and so far had no issues at all :)

I'll try the same presets with another machine and see how it goes.

In recent tests with the Nightverb and 4 channels of MIDI CC I would sometimes seem to overload and lockup the Nightverb by changing presets when running. These were presets that contained 4 channels of CC info. I got the feeling that the sudden surge of new data was too much. So I wonder if a blanket on/off might have the same issue.

Makes total sense now. What led me to the question was that I was trying to "solo" a particular CC modulation. Toggle on/off now seems a lot more useful :) Thanks

Hey that was my video with Perkons :) :) I did that on an earlier version of the Arp firmware and since then there's been a lot of extra modulation "gradations" added. The pre and post mod features, the extra time signature options and MIDI CC make it way, way more friendly and flexible for drums. I think the Arp would be perfect for someone who had a drum sound source but not an associated sequencer (like the 01/IV); or a multi-timbral synth being used as a drum machine; or for long evolving patterns with all sorts of interesting fills. But if you wanted it for a series of 10 3-minute pop songs I think there'd be many far simpler options. Arp definitely has the capability to be used as a drum pattern generator but you'd need to do some detailed programming.