I fished these for several hours today. No big crappie but lots of small ones and tons of catfish. Caught several 2-3 lb fresh water drum also. I am very impressed with these heads and hooks. The hooks penetrated the bones in the fishes mouth very well with several piercing the gill plates. Lots of foul hooked cats in the current also. Anything close to the hook got stuck. The collars held the sliders very well. I am most impressed with the added life of the grub bodys. I used very few bodies today compared to normal. The fish would eventually chew through them but I only had to replace one due to being torn and sliding down the hook. Over all I am very pleased with this mold.