SCI just didn't flow right for me. I'd be willing to give it another try, but since there is no date in sight for when 1 and 2 will be out, I'm not going to wait and rather move on to another curriculum. I have EES and even did a co-op using EES and BFSU. It's not an open and go program and for science minded parents, this may not be an issue. I've accepted that I need a daily schedule with activities listed. I end up skipping science a lot because of the prep for BFSU and that doesn't benefit my daughter. I think it's a fantastic program, but I've tried it for 2 years to make it work for me and it's not a good fit for what I need to home educate. I still plan on looking through it for any thing I should add to discuss.