Ok yesterday I started working on the Bach French Suite No. 5. Since it was my first piece by Bach in a long long time I figured it would be very difficult. I sat down and started reading and playing through it slowly and I was noticing I wasn't missing a single note and I was playing it quite well, and I eventually sped up until I was sight-PLAYING it, well I might add, and the only reason I can think of that I could do this is my pretty extensive experience with Scarlatti. Just about all I have left to do now is to memorize! If studying Scarlatti did this for me there's no reason it couldn't do it for you! After this experience I advise every single person to go out there and start playing Scarlatti.