I only have Pile. From what I saw from other people's comment(other forum) and my own experience, Pile is the hardest(but not too bad) to clean, because of the varying triangles that lubes are stuck in it(of course if you put so much lubes). So, when you clean it, make sure you clean the little hole in each little triangle (or most of them). All in all, I do not feel annoyed about cleaning Pile, as Pile gives me great pleasure. less