I just did a quick test putting a note on every step each with different program changes, played at different tempos (30 to 300)
also live-recorded randomly changing the program number onto the sequence
I can’t notice any lag or silence, it seems to change instantly, or at least in time for the note to start.
Of course it is a little hard to tell on some because a lot of presets are pads and such but I did make sure to look for some “instant” sounds.
I did notice some clicks when moving from specific patches to another, I’m not really sure what it’s related to. But definitely wasn’t clicking on EVERY step, just certain ones, and I could change the programs to different stuff and it would go away depending on what I set it to. Maybe drastic volume changes, or something in the MM engine changing too quickly.
When I threw in some drum beats I couldn’t even hear the clicks anymore. Sorry for no recording, I don’t have it set up for that at the moment