I would like to wish you luck in your pursuit of a large brown, as well as everyone else on OAF. In missouri, and especially at taney, you will be hard pressed to find a large brown unless it "is" spawn time. I suppose that "boat" fishermen have an opportunity year round, but not the "wade" fishermen. You are "not" putting the future of missouri's trout fishing at risk, at taney, by fishing at spawn time. Be respectful of any large fish you attempt to catch. It is a game of one on one. I don't think there is a magic formula for releasing a fish in good health. Do not drag them across the rocks, and take care in your hook removal. If the fish is foul hooked, break him off immediately. I have released hundreds of big fish with minor consequences. As far as tippet size, I like the challenge of light tippets. Regardless of the outcome, I am the winner each and every time that I hook up with a large fish.
Keep us posted in your quest for a large brown.