I fished it once with my own rig. Launched out of Lewistown and ran up river to Artpark Devil's Hole area. Got in line with everybody and drifted 3 way with skein and pencil sinkers. Made two drifts then shift cable broke. You will need an electric trolling motor to slow down drift. Best to go with someone who has done it there before or spend the cash and charter to learn all the little tricks. After watching several YouTube videos from people catching kings there, I might not even went because it looks like whitewater fishing. But there is some slack water also. Good Luck.
Levelwind