Problems with a flair tip

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39
Hi took delivery of a mint B-3 flair tip today. problem is it is incredibly stiff to fully open the doors, closes fine, nice and tight just a real struggle to wind it open. tried oil, sort of feels like the mechanism does not fit quite right. could this have got through QC? it does not look like it has been used maybe this is why? anyone come across this before?
 
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