Bill - I managed to find my midge tubing and try my hand at replicating your fly. After a half hour of wrestling with a piece of Krystal Flash and the tubing I gave up. I just couldn't get the darned thing thru the piece of tubing. It kept getting stuck. I sighed and though to myself, "Bill, your a cruel cruel man." (
humor). I then looked to our friend Wayne's wire core caddis and found hope. A few minutes later I managed to get a piece of copper wire threaded thru the tubing. Here is my attempt at following your lead. (
Thanks for having my back, Wayne. 
)
Honey Dun / Copper Cored Caddis
Hook - Tiemco/TMC Model 2487 / Size 10
Thread - 8/0 UNI-Thread (Tan)
Abdomen - Midge Tubing (Clear) with UTC Ultra Wire copper core (Amber)
Underbody - 8/0 UNI-Thread (Tan)
Thorax - Three strands of peacock herl (dyed brown) reinforced in a thread dubbing loop
Hackle - Honey Dun Hen Cape (natural)
Bill - In all seriousness, I was impressed when I saw your fly, but now that I have tried to tye it myself, I am
doubly impressed. You make it look easy.