The image above is collected from several snapshots of the TS-990 subreceiver's display of a portion of the 40 meter band during Straight Key Night 2014. It's not a great representation as that would take a lot of space (like a movie), but you get the idea. You can clearly see many CW conversations happening all at the same time - - and of course if you're looking for a clean space to put out a call, the display will point you in the right direction!