The art of trickery with feathers does not require scent. The fish has several other impulses - vision, motion, sound and pressure waves, etc.
As a whole, the flyfishing community is quite successful in bringing fish to hand and as individuals, we improve with every outing. Using any kind of scent in this pursuit with the fly is uncommon, if not nearly non-existent. Therefore I would conclude that you could do just as well not doing that work thing by simply concentrating on the other senses the fish has.
Just my .02,