Haven’t had a chance to try these out yet, but I have a feeling they’ll do well!
#10 Scud Hook
1/8 Copper Bead
Underbody: Large Pearl tinsel
Body: Med. Olive vinyl rib
Wing: Olive Ice Dub
Thorax: Olive Ice Dub
Collar: Olive Muskrat Dubbing
They look good. You might try them a little smaller too. Carl Richards said in one of his books that the TVA tailwaters were full of cinnamon caddis which have about a size sixteen olive larva. I know that in the Muskegon river when I would occasionally meet him his advice about insects was always spot on.
Joe;
The Caddis Larva we found on the rocks last spring were about size 16’s. Of course the photo you posted made it look like some sort of River Monster!!
Very nice flies. I, too, would tie them in about a size 16 or so.
I tie a similar pattern but use a black bead instead of the copper, not sure if it matters, just a preference thing
Rodney
Nice pattern. Very fishy looking.
Thanks for the tips gentlemen! I’ll keep it in mind.
MidgeMadness, if I tie any more I’ll put some black beads on them and see how they do. I appreciate your input!
NJTroutbum, thank you sir! I’m looking forward to seeing how these do.
If you are fishing tailwaters, a smaller pattern may be what you want. For freestones, I prefer to go a few sizes up. Especially on rising, murky water. Great technique sir.
You can use a black Sharpie to darken the copper bead - gives a neat effect. Tied in bright green that’d be very similar to the Green Caddis Rockworm; ask Bob Jacklin how much he likes that fly
https://www.youtube.com/watch?v=K2Z_G1skm6A
Regards,
Scott
nice flies,
I tie something similar called a pearl midge. one thing you might try for a variation is changing your thread color. the color of the thread under wrap changes the appearance of the pearl tinsel body
ScottP, Thank you for the info! And I like his video! 
John52948, thanks! And I’ll do that, any color you would suggest?
i like a yellow under wrap it gives it a translucent effect. I do not overwrap the tinsel with any tubing material. I just taper a body with thread and over wrap it with the pearl tinsel.