"For Rainbows in Sierra Lakes, the most successful fisherman I knew would start his day filling his mosquito head net with grasshoppers / crickets. On days that others would get one or two bites, he'd catch n release 60 fish"
Yea and the next day 45 of them would be belly-up!
This has been a gripe of mine for 30 years. If you are trout fishing, esp wild trout fishing, and you intend to release most or all of your catch, DO NOT USE BAIT.
Most bait-caught fish have swallowed the bait, and removing the hook[s] tears them up inside, very often fatally.
Most trout hooked on flies and lures, esp w/ single hooks, are hooked on the lip, & sometimes in the mouth, causing FAR less damage.
If your intent is catch n release, you ought to respect the object of your desire, and do as little harm as possible. This means use single hooks, preferably barbless. And this pretty much rules out bait fishing. Also, spend a little time learning how to resuscitate a tired fish, and NEVER touch a wild trout with dry hands. Always wet your hands first as skin oils are detrimental to their protective slimy coating.
(I'm sure you know this David, as an Alaskan angler, but this is a topic that has really frosted my chaps for a long time).