Brad,
I've owned two ST1100's and now on the 13. For a taller rider, I'm 6'3, I really appreciate the advantage of the adjustable screen. Fitted Helibars and now I don't have to lean forward to the bars which is a great advantage with back and wrist strain on a long trip. The standard headlights are about the same but alot of the group fit aftermarket lights anyway. The othe big advantage is that I have long legs and they were always touching the fairing on the ST1100 and now they don't come near the fairing on the ST1300.
Just to muddy the waters for what it is worth.
Sean