Howdy,
My take on this subject is that if you talk to any serious steelheader, they will probably be able to tell you about the wall. Just when you think you got the skills to take fish on a regular basis, the bottom falls out. It's likely that this period is the fish God's way of giving you an easy out, certainly if one continues to practice the sport at that point, they are in for the long haul. Try to pay mind to what others are scoring fish on and get lots of P.M.A.(positive mental attitude)