CDJ2000Nexus Screen Question

Hi there, I have a quick question regarding the 2000NXS displays.  I am aware that at some point during the original CDJ2000 (non nexus) production that the LCD screens were tweaked resulting in one looking more "blue" than another if you got them at different build dates.  I'm wondering if this is still an issue on the CDJ2000NXS ? I'm looking at buying a pair of "open box" from an authorized dealer and would like to know before purchasing.