I have all 4
MD is master, and sends clock/start/stop/program change
The 3 other machines receive these commands and are all slaved
I work in pattern mode only
When MD plays pattern A1 - so do all the other 3... And so forth
I sequence each machine by it's own sequenser...and some additional synths get sequenced by MnM.... Then I run them into a Desk with a couple fx on.. And presto
It's really smooth.... Except for the Octa which is new to me, and still confusing with the parts and whatnot.... They should have kept the same structure to make the 4some work perfectly together IMO
For 1 song I never use more than 8 patterns so there's plenty room for a whole set!