Hi Greg
The two on the bottom are MLCS, the one on the top is a Katie the same as the GIFKINS DOVETAIL JIG in a way ,all 3 work great the only bad part of the Katie and the Gifkins is they both cost about 230.oo bucks ea.but they both are Not adjustable and you can add to the setup on the Katie but it's not a cheap add on.
I should NOTE, you don't need to buy the extra fingers from Katie you can make your own with some 1/2" thick Walnut
.
Then use a small tee-nut and a short Allen Flat Hd. Screw to hold them in place.
JUst use one of the ones that came with the jig and use a trim router bit to make a copy of it.
http://www.katiejig.com/ http://www.katiejig.com/new/index.html http://www.sommerfeldtools.com/item....%2d1&d=158&b=1 http://www.gifkins.com.au/
Bj