Double Loop SpecTastics are hand tied in the US, and SpecTastic is a tough material to tie a knot in, these "tiny" loop knots are the hardest, and are very labor intensive, thus these will never be in stores, the labor cost makes wholesaling impossible
The Double loop is the "best" SpecTastic rigging method, they require no hardware, as the fishing line is tied directly to the loop on one end, and a bell sinker weight can be chocked with the other loop as shown below. Each "one" of these SpecTastics is a complete Wiggle rig, so you get 10 rigs per kit, instead of 4, or 6 with the other kits
Weight wires are also included in the kit so small weight can be used, the wire attaches straight to the loop, just thread one leg of the wire into the weight, slide the wire into the weight, and bend the legs as shown
There are no snag tiny snaps also included, so you can snap a weight on the SpecTastic loop, just run the snap through the weight eye, and loop end of the SpecTastic