The tab on my printed part is same length as the stock ones I have, the hole in the sheet metal is large enough that it does not fix the location of the vent. I would assume that the factory package tray has slots to locate the vent. If the long tab is oriented as you show then the vents point the direction I assumed they would (see picture below). Are you the same person on Facebook that messaged me and wanted them printed in blue? I should have everything I need to start printing these in ASA by next weekend.
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