Over the weekend i was perch fishing the first 2 days i was catching mostly small perch with the occasional good sized one. then on the last day i was splake fishing and had some dead minnows in the bucket so i cut the heads off and put them on a genz worm and all of a sudden i was catchin big perch after big perch. the only regret is that i found out about this minnow head about a 1/2 hour before i had to leave the ice.