I've never seen in work (most has been bad correlation tbh). Many prominent members of the forum have been writing this left and right (including lawyers) that you have to wait. There has been a lot of correlation of what influenced the outcome, but I've not seen it to be helpful and the experts don't see it correlating with anything either.
None of this is to say that you shouldn't try something here, but definitely to say that expectations are a double edged sword - can make you "hopeful" or very disappointed. Well managed expectations are the best here!