This rapid starts about 1/4mi from the put-in at User's. The river bends to the right dropping in to small riffles, and then curves left. There is a large eddy river left, and two holes (depending on flows) river right. The current takes you right over the two holes, flipping boaters who aren't paying attention. To avoid, paddle to river left.
This is also a popular playspot for playboaters, as the second feature creates a strong eddyline that you can surf/ complete tricks on.