This river is a spring fed run with springs swelling up from the bottom all the way down. By eddie line, are you talking about the course that the current runs in? My strategy is to hug the inside corners going up, cut diagonally across the current to hit the next inside bend (lots of those). Use the current course going downstream.
This river is not very wide and power boat traffic is common on weekends. They are held to "no wake" by ordinance. I did get the opportunity to "draft" one boat through a bad section of current, then we he swung wide to stay in the deeper water, I scooted through the shallower inside bend and passed him.
Does this sound like the right strategy?