Originally Posted by oregonism
Also, I recently read to just pull the slack out of the line to set the hook, pretty gently. I've missed plenty of fish from tensing up and setting the hook like I'm setting it against a largemouth, and I am eager to get out and try the gentler method and see if I can hook up more fish. I posted a thread from one of my last outings regarding my meager nibble-to-fish-hooked ratio.
Of course you want to set the hook relatively gently, but oftentimes a poor hooked/nibble ratio can indicate that you're close to figuring out what the trout want. Trout will more aggressively hit things that more closely match what they're feeding on at the moment. So if you get several bites but no hook-ups, make a small adjustment in size, color, or presentation and see if you can't figure them out.
PS: Can I use the term "hooked/nibble ratio"? Its a great concept!