Join Date: Dec 2009
Location: 58°19'59"N 134°29'49"W
I am an "action" fella when swinging for trout, and not little twitches but more of a yank, sometimes moving the fly 2 or 3 feet at a time in one sharp burst.
This has worked for me from AK to MT and in a LOT of trout water in between, everything from spring smolt season to fall flesh to winter sculpins. Throw it out there and start pumping the rod back and forth - or as one of my fishing partners says, "give it the old In n Out". Near the end of a swing I will pause and let the hangdown form up (sometimes up to half a minute), then give the rod a few jerks before retrieve / recast - this often elicits violent takes from fish that have sighted the fly and tracked it during the flat portion of the swing.
In some situations I will pull and drop instead of yanking, imparting a slow, smooth motion backwards followed by a fast "shove" of the rod forward to create slack - this acts to suddenly stop the fly and cause a slight drop both down and back, and can be pretty effective in triggering strikes.
I fish flies with a lot of movement built into them so as to take advantage of the imparted action, and most of the flies I fish for trout are representative of food of some sort, be it sculpins, minnows, smolt, even flesh - I think that the action of a fleeing meal is definitely a trigger for feeding fish.