Thanks, bessiedog. I tried the maribou and rabbit. I switched to the Antron, and it is nicer to work with. The flies float in water, so hopefully I can just use some sinkant if I have troubles with them.
I haven't tied these guys in a couple of years, and they're pretty sloppy. And, at size 10, they're bigger than what I would normally use. By the time I get to the size 16s they should hopefully be nice enough to be useful.