I wanted to add, for your consideration, YOU WANT TO BE THE SAME CANDIDATE--if you come in low and raise your scores, the admissions committee can see that you have true grit. If you apply and don't get in and apply again, the admissions committee loves you even more because they know how hard it is to apply and you are demonstrating that you want it badly. The bit about 'grit' over brawn and brains...while everyone knows you need both--look at the range of average SAT scores. You can hit 600 in each section. You can get into that range. You have a year.
West Point wants to bring in kids that want to be Army officers and want to attend West Point. When you improve yourself and your application, you are showing them how much you want to be there. (It translates to wanting to STAY there.)