Schweser Book 5/CFAI Book 6 similar, simple, starting

Viceroy

Hey guys, ill be finishing up with SS 15 today hopefully then onto the final book tomorrow.
how did you all find the last three study sessions?

i was thinking it would be simple qualitative and GIPs was pretty basic (in level 1), but im starting to think i might have massively underestimated the last few SS's given some posts/discussions on AF.

Also any opinions on using CFAI vs Schweser for the final book as they both seem similar in length?

Cheers.