this is not a scientific study but i was whacking bluegill, white, and yellow perch today as soon as i walked on the ice using a pimple with a meal worm. figured it was a good time to try my GULP! white maggots because the fish were there and figured it would save me time rebating, hooked a piece on the same size as the meal worm and it was like fishing in desert, switched back to the meal worm and caught fish immediately. i'm not necassarily giving up on them, maybe i need a different color. my $.02