Schools only give credit for their courses, so when you transfer into a school with passing grades from a previous school but with not enough time to earn a grade there, all you’re going to get is the credit for the course. It’s like that in college too. Your courses can transfer, but the grades generally don’t. I don’t think that will hurt you. You’ll have credit for the courses colleges require ( 4 English, 4 history, 4 math, etc.), plus the test scores to show that you’re capable of the work. That’s what they’re going to want to see. They won’t have an actual GPA from all 4 years of high school, so they’ll want to see extra work to reinforce the GPA that you do have. All those APs and SAT II’s will do that. I’d ask your GC to write a letter for your file to explain why you don’t have a GPA for those two years. With good test scores and your rigorous schedule, I think you’ll be fine. Good luck.