Actually I called Marc Sommerfeld of Sommerfeld's Tools for Wood. I have a DVD and he really appears to like the Katie jig.
Now the strange part. I noticed he is located at Remsen, Iowa. I was born near there and have many relatives who live near there. We talked about that. He coached one of my cousins in high school and is a neighbor to my late uncle who owns a Century Farm there. There wasn't a relative he didn't seem to know. Even knows a cousin named Steve Bolton, who I have never met, but share a name with. You don't run into that every day.
Seems like everything is inter twined.
The Katie really seems well like by those who have it. Charles Neil touts it.
Might I ask how many dovetail jigs you have? Do you also have the Leigh?