I would aim for a balanced tire. Ultimate sticky rubber is cool unless you break them loose. They tend to SNAP loose, where a less sticky performance tire lets you know your at the limit BEFORE it breaks loose and when it does the slightly less sticky rubber is more forgiving. Just a thought. But if you find a tire that you like and are happy with stick with it. Unless you are working on becoming a junior road racer don't mess with success.
Brake wise, I have been wondering if you have allready put on stainless lines? If not, I would replace the lines first then I would replace the pads with stock pads or an after market pad that offers a good balance of performance and longevity like the HH Sintered Pads. Now that you have the stock pads back on the rear... stop relying on it so much.
If you haven't replaced the lines the pads you use are not going to make much of a difference, feel is still going to suck. Pads won't improve that...