In my opinion Mark the dabblers that you have been looking at on here are more suited to boat fishing on larger waters loughs etc, great when there is a wave.
Saying that they will take fish on the right day, and as with all flies there (not dry) is no set way to fish them, could be differant from day to day and water to water. As an example take a plain black buzzer, most days static or fished around on a breeze / ripple but on some occasions the fish want them pulled.
So trial and error for you mate I'm afraid but good luck, and what you are already using are a better option for stillwaters, but as a little experiment tie one of these (dabbler) on the top dropper and fish 2 nymphs/ buzzers under it


job done.