I find on my waters the black Elk hair caddis performs very well. It can also be skated to entice hesitant fish. I add a light (density) CDC underwing and keep the deer hair on the sparser side.
I also use/tie a CDC only version with sparse hackle for legs between the head and wing. I have been moving away from the CDC only version because when the emergence is on treating with fumed silica and drying slows down the fishing.
Also use this:
http://www.littlejuniata.net/suspended-grannom-dry/
Not claiming that sz14 don't work, but don't fear the 16. Sz16 EHC seem to produce for me more. There are some streams where 16s (almost 17s) dominate