There is nothing more disappointing than S-
Can it just be all S?
I get so exciting seeing the S... until .5s after noticing the minus. I haven't noticed that much different between the two, personally. I understand that it shows room for improvement, but damn is it disappointing.
On that note, It would be nice to get a little report card saying what fields were lacking, holding the player back from a higher score. I think this is most necessary at S and A levels, because whenever I score lower than S or A, I have a good idea of what I did wrong and need to improve on.