Hey guy's, I've got a real simple method that work's. A 24 in. steelhead weigh's 4lb., 25 incher is 5lb. and so on. Just look at your 33in. fish if he's average build he's a 13 pounder, maybe if it's a fatty 14. I don't keep many anymore but when I do this system is pretty close. Like an old timer once told me "there's no such thing as a half pound in steelheading" just round up. Tight line's