Actually i think he meant to say that it doesnt change the corner permutation because the f triple sexy swaps each headlight with its other half. Which brings me back to my original post in which case is not completely irrelevant as corner permutations are now included.He is saying that all of these algs are usable. This case is perfect for solving corner permutations as it is very easy to recognize, so I always check the colours on the corners and decide which alg will permute my corners.