As is usually the case, Attempt #1 was a near miss. I was tying a fairly large bass fly on a 2/0 60 degree jig hook, and used standard rabbit strips instead of magnum strips, which I should have used. I also trimmed the rabbit strips a touch too short for my liking. Otherwise, I liked the rest of the fly. In the tank, the fall was correct and the tail stood up, as hoped.
I remedied those issues on the next version, sticking with the same color combination of olive/brown/craw orange. The updated version with the magnum zonkers in the tail also tank tested really well. In order to "spread" the zonker strips like crayfish claws, I utilized the deer hair technique I use in the HD Craw. This also provides a little buoyancy in the tail, as well as slows the fall of the fly a bit.
Here's the official recipe that I followed for this pattern. One thing I think a lot of folks would add, that I did not, was a rattle to the underbody. This would be a very easy addition, so if you want a rattle, tie one in. The rubber legs I use are actually made for bass jigs, from a brand called Boss. I get these skirts from Bass Pro Shops, and they are a great value. 5 full skirts are under $4, and the colors are really awesome.
-Hook: 60 degree jig hook size 2/0
-Eyes: medium dumbbells
-Antennae: rubber legs
-Spreader: deer body hair
-Claws: magnum zonker strips
-Hackle: two schlappen feathers in coordinating colors
-Collar: rubber legs