More prominent cliff walls signal the start of RIMBY.  The top part of the drop is almost always portaged after a local boater went in at low water and declared that the undercut boulder on river left is death trap were you to get pushed in there.  After portaging the top portion on river right, the action begins by negotating a lateral at the top and launching a perfect 10 foot boof.  Proceed down two distinct ramps, avoiding the holes, and then paddle hard through the class V read and run runout.