Do artificial smells on your fly turn fish off?

[Saberfish]

[black][size 3]I think that because we know that fish are attracted by scents, that they must also be repelled by offensive odors.[/size][/black]
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[size 3]This is more applicable in still water than running water. Fish usually strike a fly by sight feeding rather than scent attraction in a river.[/size]
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[size 3]I have never used any attractant on flies that I fish in still water, but I do make sure that I don't have strange odors on my hands.[/size]
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[size 3]This comes from jigging for mack at the Gorge, where I have proven to myself many times that attractants on a jig can make a large difference.[/size]
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[size 3]I hope that my personal experience will help in answering your question.[/size]
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