Mark, I fell I understand your question – only because I’ve been there. When La Bamba and Quando, Quando, came out I could play the notes, and the chords, and the Kn7000 offered a great style, and I played without error.
After two years of my best effort, this is what I learned.
1-Enjoy Latin music, but you will never do it well.
2-I can improvise fairly well, but Latin impro was different.
3-Music and feel, go together. Latino music is ALL ABOUT FEEL. The singers are players are moving before the music starts. They are feeling what they are going to play – it’s a matter of hitting the first note, and out it comes out – and I love it.
Mark, keep trying, you'll do a better job then I ever did. You have good command of your keyboard.
Just my thoughts, John C.