the whole method of flossing or "lineing" the fish, is pulling the line through thier open mouths correct? well then its physically impossible to do that with trout, and steelhead, as they dont swim with their mouths open like a salmon does that has been in the river for a month... boot kings like his pictures show on his website can most deffinately be flossed, and this dude mentions "flossing" how many times in his videos? but never once said anything about a "hang back rig", not once...