i do think I'm going to ask for the second set of brakes along the flat part of the bars. I just still get that "oh sh*t feeling" and having the breaks all the way down kind of freaked me out. I think I'd feel more comfortable having that safety net. To compensate I was riding mostly with my thumb around the top part of the brake - so I could get my fingers to the brakes quickly - but I have really weak hands - and I could tell just from the little bit I was riding that would kill me if I did it for too long.
I have those brakes on the flats and I love them! I used them all the time when I started out, and only more reently have I been using the other brakes as well, as I feel more comfortable in the hoods. I hardly ever ride in the drops.