K7 - 3880 use Photo/glossy position black for matte prints?

I have K7 BW in a 3880, will be printing pretty much exclusively on PhotoRag 308, so matte. The ink set has two different blacks for glossy and matte printing. Is there a reason to tell the printer and QT-RIP to use the glossy black on matte prints? A change of tone, perhaps?

No reason. Just used the “Installed” setting and it will use whatever ink the printer is set to (in this case matte black).