Stocked trout survival depends on them finding quality holding water to winter over.
In most rivers that require stocking, there's not enough for all the remaining fish when cold weather hits. Even if they are able find a suitable "hole" (and they travel miles to do that) there's only so much space and the smaller or less dominate fish will not be able to compete for room.
---------- Post added at 11:12 AM ---------- Previous post was at 09:44 AM ----------
Oh and fire instructor, hatchery trout are not attracted as much to the feed pellets themselves as they are attracted to the sound of the pellets hitting the water.
Pellet flies may work, but probably not because they look like the hatchery feed.