It could make a HUGE difference depending on how the ballot is organised.
If it is done by branch, then the fact that just about every Prospect member ATCO says NO will only result in a NO result for that branch. The ATSS branch could have a completely different result, as could PCS (not just ATSAs in PCS).
So what would the NTUS do if they had big fat 99% NO from ATCO branch but YES from ATSS branch and PCS members
As far as I know, if
any of the following three .......ATCO, ATCE, or PCS return a majority no vote, then its a
no vote for
all members in those three groups