I have been doing some reading and thinking about the action of streamers/bugger and possibly wet flies it river fishing. If one just lets the drift finish the fly hangs in the water and possibly moves a little bit. However, if there was a dodger above it the fly would dart about, although not move upstream or down. I expect this would be more realistic. I think I recall a thread here on the topic, but what do you think? Would a Dahlberg Diver or muddler create the action. Do I need to invent a fly fishing version (false fingernail - is it strong enough?). Something to put in the line that would make the fly a foot lower dodge and dart erratically. Your thoughts ??