Paul, most of us have discovered, to our dismay, that we can only fish our smaller ponds a limited number of times without fish getting hook smart. My catfish see my red and white cork and won't bite nightcrawlers, blood bait, or minnows. I'm experimenting with small sticks for floats. Heck, last weekend my bluegills fed voraciously on pellets but wouldn't touch a piece of nightcrawler. If I do catch a bass or catfish, all action stops in my one acre ponds. On 150 acres I would think it would depend on the number of baits the fish see.