Ok, I put on a replacment hose for the orange turbo inlet today and took this picture just to see how things look. Can anyone tell me what is up with that one fin? The round thing on the blade below appears to be a trademark or something. But what about that big oily spot that looks like some of the fin has been removed??? If you look at it full size you see it looks to be something more than just oil on the blade. it looks like part of the blade is gone.