I agree with all your comments.
Yes, I did cut it close and there was a big chance of extra scrutiny. By studying abroad, I don't mean I did so as an exchange student for 6 semesters. My first 2 were as an exchange student. This was in 05-06. Then, once I was here finishing my undergraduate degree, I decided a little too late to go to graduate school, but I missed the deadlines and didn't take the GRE on time, so my professors encouraged studying abroad. Of course, I knew it was a risk, and I spoke to CIS about and they gave me guidelines, similar to the ones you all gave me here.
Bobsmyth, thanks so much for the fax#. Definitely a bonus for me. I will fax over documents as soon as I have them.
As for the 900 or 913 days, CIS says half of 5 years, but doesn't provide details, so one has to figure out those details, which is what I did. I cut it close, but I don't feel I was duping the system. The system and guidelines are there, and I made sure to work within those limits. If I was arguing for something after I went over the limits, I think that would be different. I found a couple of immigration lawyers who do define the physical presence requirement as 913 days, so I will try to get them to help me.
But, again, this is my own doing, and I have to do my best to convince the IO. Thanks for your comments.