I would think that it wouldn't just because the edge doesn't know how long or short the whiskers are. Although something makes me think that a shorter whisker maybe more resistant or rigid (flex) than say a longer one. I still don't see how that would impact the edge, the edge like I said is still going to cut at the same spot on the hair, might be at a different angle depending on the length so maybe that would affect the edge. who knows.....