
Blessings,
Carrie

Blessings,Thank you so much for taking the time to do that. It really helps me to "see" where each child is at skill-wise which makes my advice more solid. First off, I'm thinking that all history cycle focusing aside the best fit for your kiddos HOD-wise would be to combine your 6 and 8 year olds within Beyond, and add the right side only of Bigger Hearts for the 3 R's (and possibly the science) for your 8 year old. This would fit both kiddos well and would put them on track to head into Bigger Hearts with extensions as a team the following year.
Then, I'd place your 10 year old in CTC which she could use quite independently (especially if you think she's be able to do Sonlight 3 + 4), then she could easily do CTC mostly on her own as scheduled too. This would give her the additional writing that she needs through Write with the Best and suit her interest and ability level overall. It may be time to consider allowing her to branch off into her own guide, which is completely up to you. I know for me it was a relief to let go of the history cycle as the driving force behind my curriculum decisions and to just have things be on the right level without all of the sometimes frantic tweaking it took to make the history cycle fit everyone.
So, with that being my primary recommendation, if you deeply desire to have all of your kiddos on the same history cycle, then Bigger Hearts will fit your 8 year old well, and you'll be adjusting up for your 10 year old and down for your 6 year old. In this scenario, I worry about your 6 year old being pulled along with the older kiddos so that is definitely something to weigh. This will be what happens whenever you group kiddos together, whether you use HOD or something else. So, we're no different than the other programs out there in that respect. While you could definitely put your 6 year old in Beyond at half-speed instead, at that point you'd actually be running two programs (Beyond and Bigger), so then I'd definitely lean toward my original advice for 2 programs with Beyond and CTC instead.