I recently had a thread on here getting options about the dovetail wiz jig by peachtree woodworking or the Keller jig which looks just like the dovetail wiz..they also make a gafkin that looks like the other 2..I like the back in the best with the double stop blocks..but needless to say they are made in Australia and the shipping would just be too much for me....my question is..does anyone know where I can get the double stop blocks like gifton uses...thank you..