| I've just taken a looksie, and it's going to be tough to tell.
What I can see without taking my front wheel out, is the the wheel side the flange is almost flush with the seal (just a sliver showing) and the fork leg side there is about 4 mm. I would not be able to compare the two sides without taking it out. I think you should look at the wheel side and see whether the flange is proud of the seal or not.
Does that help? Is there anything else I can do? | 
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