Being a soft-hackled fly addict, i'll bet you can guess how much i like fishing an emergence? I think flys like klinkhammers represent more of a struggling dun in/or on the film...fished more like a dry. They are lovely tied flys, but I don't believe the majority of trout in a given run during an emergence are really that keyed to one singled out stage of a hatching, or emerging mayfly. I think some folks make trout fishing out too complicated. I guess it all depends on how the individual wishes to present his/her fly to the fish. Personnally, i like catching fish too much to limit myself to the top.
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US Veteran and concerned citizen