Just had a read on the J1, HDMI & USB only mate :(
http://www.dpreview.com/products/nikon/slrs/nikon_j1
There is a way around this..use a tiny FPV cam pointed at the camera LCD!!!
Ross
One thing I noticed was the camera struggling to get focus lock as the arm kept coming into the frame & the camera was trying to lock onto it. I don't know if you can lower the camera on the gimbal a inch or so more?
Ross
I also use MK with my Skyjib, but mine isnt as smooth as yours..thought that could be my ESC's!
I find in position hold that it tends to drift about a bit, how does yours respond?
Ross