This all seems so complicated! 
DS has an A, B and a C in his English coursework.
He did badly in his mocks, but has been entered for Foundation in the hope he will score a C, and therefore "hopefully" get a B overall. I think he may well just end up with a C.
DS is capable of getting a B in the exam, he's always been on track to get an A or a B. He got an A in the end of year exam in Y10, and is generally able. Until the mocks it was expected he would do the Higher paper.
My gut feeling is to put him in for Higher, and his teacher is happy to do so if that's what I want but it's a massive risk, isn't it? DS doesn't know, and is happy to trust me and his teacher.
Help!