Sharps, this is JMO of course, but you can do yourself a lot of good right off the bat by pitching that Harry Murray book behind the fridge or somewhere else that is equally hard to get to and easy to forget about.
Harry Murray has apparently stumbled onto a waterway where the trout wear smallmouth suits, and you won't find those cross-dressing Smallies here in the Ozarks.
You wanna stick predominantly to topwater flies (Poppers, Sliders, Foam hoppers, Gurglers, Crease fly's) and sub- surface flies (Muddlers and the like) that you can maintain visual contact with a few feet below the surface. Rabbit strip leeches, Sparkleminnows and Clouser's are about the only flies you'll need for covering deeper areas where you can't see the bottom from where you're standing.
Crawling crawdad imitating flies along the bottom is the most difficult presentation to master and usually it is easier to coax them into hitting something you can see than to rely on lightning fast reflexes or pure luck. Unlike Harry Murray's fish, our Smallies have a tendency to approach slowly moving flies, suck them in....and spit them right back out before you are even aware that you had a bite. The most consistent strategy for getting them hooked is to maintain a tight line to the fly at all times and try to illicit an aggressive take. Or by using presentations that allow you to visually watch the take.
Sorry to rail on Harry and maybe I'm out of line by assuming I know better than he does, but his and Holshlags writings set my learning curve back about 2 full years.
That's all I got