Hi Brittany,
Thank you for reaching out!
With respect to the full-length exams (FLEs), we are advising students to give priority to the 10 Altius FLEs (for the incredibly detailed score reports that identify weaknesses in topics, subtopics, reasoning skills, question types, etc.) and the 5 AAMC FLEs (for the authenticity).
You can do the 5 EK FLEs if you are starved for extra practice.