Took it end of October 2017. I used the 4th edition and my study partner had the 5th edition. There were some differences between those two, but not enough for me to justify spending any more money if you read the CS manual and are familiar with the format of the note.
5th edition should be more than enough to pass on it's own
Best advice is to practice writing the notes as this is where the majority of your ICE score comes from. You can mess up and miss a fair amount and still do well. My tips for each section
SEP: Speak clear, concise English
CIS: Be empathetic, ask social questions while waiting for hand sanitizer to dry (ie if you're taking it in Philly soon, "Did you go to the Super Bowl Parade?") or make brief small/joke talk to establish rapport when they mention what they do for a living. Follow the PEARLS mnemonic in first aid. Finally, don't show your personal feelings if a patient expresses a lifestyle choice you disagree with (homosexual, drug abuse, etc)
ICE: Practice, practice, practice writing that damn note and getting the formatting down. Make sure it's clear, concise and consistent follows a pattern (CC,HPI,ROS,PMH,PSH,SH,FH) for history and (Vitals, HEENT/CVS/Lung/Abdomen/Extremities/Neuro) for physical. Also make sure to write pertinent negatives in the supporting justifications section of your diagnosis, I think this cost me some points and was the reason I dipped into borderline for ICE
As for other resources, I used UWorld and thought it was great, but there was some conflicting workups with First Aid and on one case in particular in the real exam, I wasn't sure which tests I wanted to order or didn't want to order. It's probably overkill, but if you're nervous and want to make sure you pass, it's worth the purchase just because you get an extra 40+ practice cases
