Hey TulaneKid, you read Beckmann in 3 weeks? Bless your heart... I couldn't do that if I was living at Starbucks with a Coffee infusion.
Pretest does have alot of problems, so you do need to look out for them. Its the same deal as Surgical Recall and Buzzwords for Step 1. For all of these, you can do a search on-line and find a site that will have the corrections for each book. The link I used when I was a student is down now, else I would pass it down.
I do however think that Beckmann is overkill for a 3rd year and that more time should be spent in L&D delivering, clinic doing gyn and follow up OB stuff and learning "on the job." This however can be dead wrong if your shelf is malignant 😀
Good Luck!