I'm off to the Atha B/Berland tomorrow for some white action.
Best way we found in the rivers: Piece of coat hanger bent to a V(have to size it to the rivers flow). Tie your line to it. Go up 2 ft and tie on your Fly. We use the scnelled Hook style with a fly that already has a leader and a loop on it.
That coat hanger will bounce along the rocks keeping your hook in the zone. Still gets hung up but not as quick as a nail will.
No maggots allowed where we are going