It will work just fine.

Unless you really like the feel of the gigantic STI hoods (one of my main reasons for not switching to them!) you might consider just swapping the entire system out now for a pair of barcons and some plain brake levers.

BTW - Don't sweat it about the Mechanics Forum. I ask all kinds of dumb questions over there. Go look at my current thread about pitted hub cones, for example.