So I'm studying for the physics GRE and plan on taking it this April. While I understand the deadline for admissions to most universities is right up until the semester begins, I also understand it is a first come, first serve deal. Are most slots going to be filled by May, when the scores are available by phone? I believe it is possible to apply without GRE scores however my GPA is low and I have little research experience (my name is on one paper, last place). Am I right to assume that an excellent GRE score will offset my low GPA, and that I will likely have to settle for Spring enrollment since most slots will be filled by May? I'm going by the dates on this site: http://www.ets.org/gre/subject/register/centers_dates.