Mechanically, both Roland and Yamaha style 3 zone cymbals use the same design, i.e. a piezo for the bow and two switches - one for the edge and one for the bell. Electrically, Yamaha style 3 zone cymbals are better since they use the same input for both the edge (via a 10k resistor) and the bell switches so only one stereo jack is being used on MegaDrum. Roland style 3 zone cymbals use two stereo jacks.
Setting up either type is equally easy (difficult?) and mainly requires right settings for Thresholds/BThresholds. See
viewtopic.php?f=3&t=1968 right at the top of this subforum and
http://www.megadrum.info/content/settin ... one-cymbal in the MegaDrum Documentation.