At our school we had the option to do additional maths FSMQ for "top set", this now means we could do C1 C2 S1 and C3 in Year 12, however our teacher said that taking the C3 exam early can harm your chances to get into some uni's. I'm not particularly sure why but someone in the year above us had this issue when applying for a top university. Does anyone know any specifics on this and if it would harm my chances to get a Physics offer from a good university or if it's different for every uni.