Sounds like you had a pretty decent day. Awesome ! Wanna swap soft hacle patterns ? This one always comes through for me on the Niangua....
TMC 3761 #14.
olive 6/0 uni-thread.
Rib: gold wire.
Body: lt.olive uni-stretch.
Thorax: peacock Ice Dub.
RN pheasant hackle.
With the conditions you had Friday I would have had a #4 shot about 2ft up on 5x, and feed alot of line into the swing.
The toon is perfect for the Niangua when the river is between 2.0 and 3.0, but I know how it is when it's down below 1.5 (I have an 8ft. Outcast that's hard to keep straight in slow water...and God help you if the wind picks up).
Personally I'd go Canoe before 'yak...but that's just me. I use a OT147 Guide, it's a bit heavy but it's solid as a rock, floats shallows great, and solo's just fine. I like to pack a lawn chair, cooler, and some backup spinning gear for Smallies. Plus and I have to have room for my fishin'hound so a 'yak or little solo canoe would never work for me.