Is anyone using the Roland FD-9 high hat pedal with the MK-2? Any advice is appreciated. Thank you.
Can't say for sure, but I really don't see why it won't. The premise is the mechanism works the same as Roland VH10/11/13 controllers. But not having tried it myself, can't say for sure.
https://www.drum-tec.com/zourman-2box-hi-hat-conversion-roland-fd-8-fd-9-vh-10-vh-11
if you mean the new, dark mk 2 module, yes, i use a fd-9 myself