how about 1st aid for step 2 CK and CSJust do the following:
Kaplan Lecture Notes, (no need for the videos)
Kaplan Qbank
USMLEWorld
NBME before the exam to make sure of your score
After finishing the CK, you can do the CS
FA for CK is not needed see this pollhow about 1st aid for step 2 ck aand cs