Did you do all that prep you mentioned before ITE, before/after, or just after ITE in prep for Basic?
I'm currently doing M5 questions one block at a time, reading/taking notes, and then listening to pass machine's relevant section. And then reviewing text for that section in Baby Miller. Takes about 2-4 days per topic depending on call schedule, reading for cases, weekends, etc. About 60-90 minutes per day; not too bad, honestly.
I should finish Pass Machine and almost all M5 questions before the ITE; plan on redoing all the M5 questions/reading my notes and adding Hall Q's and pass machine lectures again between ITE and Basic.
I also use the OpenAnesthesia app and keywords during long cases, long breaks, or on call when it's tough to truly "study."
Should also mention that the University of Kentucky on iTunesU has a series of lectures that are dedicated to the Basic Exam, haven't listened yet but I imagine they're very good, as most of the other lectures I've listened to are.