Hi mastros, Sorry to be so long in answering your post. I think winter is a perfectly good time to start BFSU, and your beginning lessons will be the same. A/B-1, A-2, B-2, D-1, C-1, B-3, although the order may differ. As you get into spring you will probably want to continue heavier on the B-lessons as they fit into what kids are observing in the real world, but don’t totally neglect lessons in other areas. Please post your question on our Facebook site: https://www.facebook.com/groups/308651699340117 I am sure you will get more detailed responses from folks who have been through it. Thanks for asking.