I have been using my SB800 as a comander and my SB600 as a remote flash for a while. I pulled out the SB800 manual last night to brush up on some things and noticed that I can fire the remote SB600 without firing the Master SB800. In order to do this I would need to turn the mode of the Master to "---". So on the back of the SB800, it would look like this: M: --- A: TTL 0.0 B: --- C: --- According to the manual, this prevents the Master from firing, but the remote flash still fires. I did this, but both flashes fired. What am I doing wrong?