Folks - I had exchanged an idea for another with Mark swap back around a month ago. I got my last reply from him on May 5, when he replied "Sorry Rick, I've been sick as a dog. After I mail out some swaps I'll add this one.".
I haven't heard from him since, and as best I can tell, he hasn't posted since that same day, and his last activity is listed as May 12. Very unusual for him, as he's a "regular"....
I'm hoping that he's doing better, but maybe it's time to send some good thoughts or mojo, prayer, or whatever your beliefs, his way.