So far in my life I have caught a lot of cats in the 1-3 lb range. Fewer in the 10 plus range. I have found after looking over my records that when I hit a spot with cats that are in the 1-3 lb range it's usually all there is there. When I'm having a slow time not catching much I usually catch the bigger ones. Channel cats from the smallest ones to about 4 pounds look a lot alike with silvery sides black spots and a narrow aeordynaic head with a small mouth. They also live in a similiar style. Cats as they get bigger begin to change appearance quite a lot. The heads get masive the mouth huge and the spots are gone. They seem to turn a more olive green color as well. Do you catch them in the same places with the same baits? Seems I only catch them seperately. If so where are the bigger ones living when the smaller ones are all schooled up and can be caught in big numbers?