How Much Overtracking?

[Ninsect]

tak13 said:

Ninsect said:
MS will never announce anything but NPD and shipped numbers so we can only guess. Same with Nintendo. I expect both WiiU and XB1 to be pretty substantially overtracked though.

Ninsect vgc will probably have wii u at 8.7m by 28th of Dec,nintendo shipped 1.95m last year same quarter,wii u is yoy up ww according to nintendo,except Japan,even if they haven't outshiped last year's same quarter,they probably shipped the same amount,i.e 1.95m and wii u is at 7.29m as of 27th of September,so 9.24m shipped as of 28th dec!If you want my opinion,I wouldn't be surprised if it is undertracked this time...

Bold: Source for that?