Do any of those tweaks above have background 'usage statistics' or other 'data auto send' functions ticked?
I've got the below tweaks that are the same as yours on either one of, or both of, my iPad and iPhone and none of them have caused a data spike at all. None of the tweaks below cause any problems, nor are there any reported with 6.1, which I had on my iPhone (iPad on 7.0.4).
Activator
Auxo
biteSMS
f.lux
FastBlurredNotificationCenter
FolderEnhancer
Nitrous
Springtomize 2
WinterBoard
03-24-2014 11:55 AM