Single Sponsor For 2uk Visa Application

Guys,
  i want to find out if the ECO's will not raise eyebrow, if two applicant's submmitt the same documents of sponsorship for  student visa application,i applied for a study visa in december with my uncle as sponsor(we don't bear same name) and the visa was granted am now in united kingdom.my immediate elder brother is planning using the same documents for his PHD program in wolverhampton(though he has a tuition waiver schorlarship,what my sponsor's need is just to take care of my brother cost of living for the three years program).i want to find out from the in-house guys (Akolawole,mr pataki,funky baby & lord Vor) whether the short period (i used it in dec,my bros intends using it in march) will not jeopardise his visa application