Bob, yup! They only came out a few years ago so there's a lot of experimentation going on... kind'a like when dumbbell eyes and cone heads first came out. I only started tying with the Skulls last summer so I have limited experience with the patterns... but experimentation with new patterns is the part I like best about fly tying. It's a heck of a rush if the experimental pattern works for me and my fishing buddies. Guess it's part of the creative process. However, it's a bummer when someone gets things reversed and laugh at my fly patterns instead of my cartoons.