I think it is quite preposterous to say na hindi nababawasan yung data. Mababawasan naman talaga yan but the thing is, you will save some data. Isipin mo nalang na I-mamaximize ng injector mo yung 4gb. Pero since sabi mo nag ultra surf ka, I think mas Ipaprioritize ng simcard mo yung 4gb instead of yung Ultrasurf, Correct me if I am wrong.