Now I have the good piece for some time and am very satisfied – but something is annoying then after all: the tail wiper – apparently new and intact – always only wipes the first and the last third of the wiping field – as if the wiper stands out in the middle. I can’t explain it to myself. Does someone have similar experiences here and knows remedy? It’s not a doom of the world – but if you want to wipe, you also want to wipe ALL!