Hi David,
I did this "5 years ago" when I initially posted this article, and was successful. I've done since been recording with live musicians, so I have not used my drum machine, til now. But now I can't find my notes on how to do this.
I've set up my physical connections as you've suggested, and can hear my drum machine. Now how I make Logic X "start" my drum machine and start recording, that is, when I press "Record" on Logic X, the SR-16 starts playing? Thanks again.