I have had a terrible time with the Fin, but when the bite gets on it you had better be tossing it. I have ones that have feathers and those without. I haven't bent the lips much, but have changed hooks and bent the tie and put on better rings. Like the others have said and I agree. We all proably have more that don't run right than ones that do!! This seems to be a lure that you have to "adjust" to make it perform. I have not had any luck right out of the package. These guys on here have way more experience with them then I do. I have several that only work well in slick water and some that as you say work better in a slight chop. Another thing to make matters even worse is Line, Reel, and Rod. I'm still learning, but this also can improve the action or dull it. You can also look back to some older topics on this.