I've had a Berkly lip grip for years. Never tried usein it on anything bigger than 20#. It works just fine for the channels I catch. Now I don't use it to get the fish outa the water. However there is a member here on the board that uses the kind with the scale in it to haul some pretty big fish outa the water. I'm talkin fish in the 30 to 50# weight class. Me personaly I'm gonna use a net to get em up in the boat.But thats just me. He swears by it and it works for him. Me,I ain't trustin it. LOL! I only use mine for holdin the bigger channels to get a pic. All other cats I feel ya can control by a hand in the mouth and supportin the body. In my opinion them channels got the worst attitude of all the cats. LOL!