I can't get the burst mode to work with the remote. I set the remote on, selected the CA-1 and selected burst.
When Burst mode is active, it starts shooting when it see a "half press" from the remote and stops when the "half press" goes away. With the CA-1, you need to push gently on the button to get "half press". A slightly harder push gets you a "full press" - which will cancel burst mode.
Update : there hasn't been any feedback about "burst" mode since it was added it to the USB remote code.
Two things occur to me :
1) Would it be better to start shooting on a half press and continue shooting until the next half press (i.e. you would not have to hold the remote button down while shooting) ?
2) Currently, the camera is allowed to focus and set exposure before each shot. It should be possible to shoot somewhat faster if the focus and exposure are locked after the first shot. But that would not be good if your subject matter was moving or the light was changing.