Oshirokita

15. Kotoshoho

14. Roga

Oops, I think you are right. I used the same logic but forgot to assign an aite for Oho.

13. Atamifuji

12. Nishikigi

11. Hiradoumi

10. Shodai

None of the picks so far have been surprising (even though I chose the alternate theory twice to my detriment, I had been insufficiently tempted by the correct torikumi). Today, I am going into left field: 9. Oshoma

8. Tobizaru

7. Onosato

6. Oho

Hmmm, two plausible choices. I'll go with 5. Onosato

4. Hoshoryu

I had the exact same problem about 5 minutes before deadline. Made my picks, hit submit and got Day 5 error message...

3. Wakamotoharu