Standard vs. upcharge vs. exotic shafts

I need some help interpreting the shaft designations in the custom club PDF.  In the "type" column, the various shafts are identified as standard, upcharge, and exotic.  (Some show two separated by a slash.) What is the difference?

I thought standard was a N/C option to stock.  But my retailer is telling me that the UST V2 is an extra $200 in the 913D.

Hi,  Standard means that this is a shaft that we keep here, exotic means that we have to order the shaft from the shaft vendor and upcharge means that there is an upcharge attached to the shaft. 

Got it--thanks Cathi.