I took it today too and think nearly everything that was in my exam was on FA. Can't say for sure of course, but the majority definitely was.
My problem with FA (and RR Path for that matter) is that I have a hard time reading "high yield facts" and retaining them. Packing a whole ton of random facts into my head just didn't work real well. I found that reading through BRS Path helped me a lot. I also read through a Cell Bio board prep book (I think it was BRS) recently and that helped me a lot. It was all real basic stuff, most of which wasn't in FA, and a lot of which helped me answer a few more questions on the test - maybe it wasn't NECESSARY, but it did help me understand a few things better (since I had forgotten so much since the first part of first year), and I can honestly say that if I hadn't read it, I would've gotten at least 5 questions (maybe more) wrong.
I was also glad that I went back through biochem (FA was enough) before the exam because that probably gave me another 5-10 questions as well.