I've been told that the cut off for my sub-committee was 18.6
My final score was 18.1, which puts me on the wait list.
They are unable to state how far on the list one's name sits.
As I understand, the scores don't really mean a whole lot, except in relation to one's subcommittee. For example, if I am in Fine Arts, my application goes to a subcommittee where it is re-evaluated (possibly keeping relative merit in mind). Within the Fine Arts, there could be other subcommittees where the cut off score is 17.1 or 16.9 or 20.2, or whatever. They said that the success rate in all subcommittees is the same 52.9%.
So, some people happened to be in less competitive sub-committees and some in more competitive ones. It's hard to say.
Having asked SSHRC all the questions I needed to ask, and having received responses to all my questions, I see that there isn't anything to be done. Now, it is a waiting game.