Hi,
I wanted to know if it is worthwhile to go over OG10. I have both the OG11 and OG10, but I did not want to waste time if OG11 is sufficient. In addition to OG10, I have the spreadsheet that goes with OG10 that lists whether the question is easy medium or hard. I felt that I could just focus on the hard and medium questions if I need to use the OG10 as additional practice. Any advice would be greatly appreciated.
Thanks,
KJ