Those are definitely typos. The experience levels in the headers for the columns should be 1-4, 5-8, and 9-12 for the following tables:
- Tracking Saving Throws
- Thief Defensive Saving Throws
- Magic-User Defensive Saving Throws
I just uploaded a PDF with the typos corrected. To show my appreciation, I'd like to send you a free hardcopy. Just let me know the address to send it to. My email is nwyvrepress -at- gmail.com.
Thank you so much!