Looks to me you have that one on the race pointed correctly with the "square raised ridge" toward the bearings. I have noticed a very slight difference between these seals on SOME Tange HS for example on a HS I think is a Passage model the one for top of stack is a little wider than the one for bottom stack, so minor I'm not even sure if it's just a manufacturing tolerance but I place them back in same places they were removed from. And these were all-plastic seals, no metal in them AFAIK.