your right about drag free casts, learning to mend my line was a lesson I experienced very early on ,but did not actually learn right away. I learned to fly fish around 8 yrs old with my father on a still water lake in Vermont= no current, stripping flies. My first trip to conny was a different story. I think between my father and myself we had maybe 4 fish on streamers I had tied. A local sharpie walked past us and pointed out a bunch of trout sitting just outside an undercut bank, as he past going to beat. I tried to catch those fish for 2 1/2 hours with no luck. At the end of the session that same sharpie passed by again asking how how made out. After venting my frustration's, he said "You have to mend your line, let me show you". He then proceeded to pull 5 trout on back to back casts. Lesson observed!!!! It took some time to master though, It was easier to learn on some slower moving streams like the Carmens river, before I was able to get it down on faster moving water. I think what I meant by saying "dumb" trout is there is no need to worry about matching the hatch at conny, they will even try to eat your strike indicator there as long as it is drifting drag free. On places like the upper reaches of the Carmen's, matching the hatch and drag free drifts are both equally important to be successful