NOTE - see post number 26 for revisions in the tying sequence.
First, a pic from the fishies’ point of view.

Next, a pic from the fisher’s view.

After I tied the f.e.b. securely to the hook shank, I separated the tail rubber legs and trimmed them to length. Next, I separated the remaining rubber leg material from the antron yarn and used those two strands for the hind legs.
Then I went back and tied in a piece of dark brown foam for the main body, keeping the rest of the antron material forward of that tie in point. After the foam was tied in, I moved the tying thread forward to the position of the middle leg set. Tied in another length of two rubber leg strands, pulled two strands back, separated them and tied them into position for the middle legs.
Next, I wrapped the tying thread forward to secure the remaining length of the two strands of rubber leg material to the shank, up to the point of the front legs. After tying the front legs in so they would point forward, I wrapped the thread forward again, and added a couple more pieces of rubber leg material for the antennae. Next, I pulled the antron yard bundle forward to add color to the underbody, and tied it off behind the antennae tie in point.
Pulled the foam strip over the antron bundle and tied it down, leaving a long tag to be pulled back and tied in as the final step. The next to last step was tying in a dark deer hair wing. After the deer hair was tied in, I pulled the foam tag end back over the deer hair and tied it down. Took a couple five turn whip finishes on top of the final foam tie in point and applied a liberal coat of water based head cement. The final step was trimming the foam tag.
I’m not entirely satisfied with how the fly turned out, but I do have some confidence that it will catch trouts as tied. I think I can find materials in better colors, and a longer wing, with elk hair, or maybe dark black bear hair, probably would improve the fly. On the positive side, it should float well and present a good silhouette and lots of action to the fish. The best part of this exercise was creating the f.e.b. with the tail material incorporated in it. That technique will find a number of other applications, for sure.
So much for tying. Hopefully, I can find some trouts tomorrow on the Henry’s Fork and see if they will be duped by this f.e.b. H.F. Salmonfly. With a little luck finding some fishies, and presenting this fly properly, I just might have some fish pics to add to the thread tomorrow evening ??
John