Have you considered using a down stream presentation, that James E. Leisenring recommended, using his Leisenring lift method of called for the fly to be cast across the stream along the bank of the stream, with the only the leader in the water with the fly line held off the water. As the the fly reaches the end of it run, allow it to to be swept across the stream by the current. This work for dry flies as well as wet flies, nymphs and emergers. This will draw the trout out of their spot to follow the fly pattern.

Another idea created to James E. Leisenring was dressing the pattern backward on the hook with the head of the fly at the rear of the hook shank, and the rear up near the eye of the hook. Then as the fly pattern drifts downstream, the hook is presented up front toward the fish with the fly pattern being more realistically presented....

I have used both method (together) with great results. ~Parnelli