I asked this question at the convention.
I don't want to talk for Carrie but I want to encourage you that after I spoke with her and asked all these kinds of questions, I am more than confident we can use the American guides for high school credit.
I wanted to just share that I have one now technically in 8th doing RTR this coming year. We have upped her science and LA, she is in Algebra for math. I have added some to RTR and will see what Carrie's recommends on that when it is printed.
I have decided we are counting RTR as her first year of high school. Then we will do the next two years of American/modern and count them as high school as well. I am really confident in that after looking at what else is out there and having time to chat with Carrie about it.
My one question was on the geography guide because she will be in 11th when that comes out. But we have advanced her with counting RTR and I feel confident we could use that year as a world view year as well. We've decided order is our choice not what everyone else says, we can do geography whenever we choose really.
And truly we need a year that we can add to it the things that we know we should teach, want to teach but let the world suck out of our schedule before we send our oldest"on her own". I am really excited about doing HOD for high school. Finally after maybe 5 months of frantic searching and looking at everything in person at the convention and elsewhere, I have peace with using HOD for high school and trusting God for the rest.
I know Carrie will get back to you on this but in case any of my babble helps
or just knowing others are going down the same path putting it out there in case it helps.