new First Aid book for Step 2 CS

[doctorhopefully]

The 6th edition for Step 2 CS was released last month. It's $50 on Amazon, I already have the electronic edition of the 5th edition. I'm taking CS in 2 months, do you think I should just use the 5th edition? Apparently there have been some changes in format/structure to CS for 2018, but I'm not sure. Already running out of $$ due to interviews.

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[atlmd11]

I was wondering the same thing. Taking my exam at the end of Jan. Since I didn't find any info on which edition to use, I ended up buying the 5th edition from amazon for about $27. I was hesitant to pay the $50 for the 6th edition. Have you heard anything else on the changes in format?