According the Jan 2012 grade boundaries, to get a C for Unit 1 for example, you need 35/54 if you sit Foundation whereas if you sit Higher, you only need 16/54. This seems like a huge discrepancy. So for example, if I were to add the three unit marks together to get a C, a students would need 87 overall if they are entered for Foundation but only 53 if they're entered for Higher. Is this correct or am completely mistaken? Wouldn't it be better to enter all the students for Higher for each unit considering the questions aren't that much different really?