I have to admit I am giving away one of my deep secrets, but I will do so because very few people have these lures unless they have kept them from their fathers and grandfathers. I keep about 15 Thin Fin's just to fish for the SM on Dale when the SM are hitting shad on the surface in pods during the fall. I have been able to find them on eBay, but it seems they are getting harder to find as years past. SM will simply smash these lures when they are feeding on shad. The SM will hit most anything during this time, but they will **** these lure without any hesitation. I use the smaller size because they match the shad these fish feed. So, now you know.