Ken,
When the adrenaline kicks in you will be able to move those fingers fast enough....
fight or flight!
Stan, I understand the timing issue... I just try to play what is on the page when I am practicing it. (like for an audition.) I try not to put too much interpretation of my own into it, and save that for the conductor.
The first time I performed Beethoven #9, I was about 22 playing in the Augusta Symphony (GA) and got put Assistant with my college professor. Talk about pressure... (insert sweating bullets icon here...) Just to make things interesting, we did Beethoven #1 on the first half of the concert.
I have done it several times since then. It gets better every time. As of now I have performed all the symphonies except #4. Don't know why... just doesn't get programmed much. I want to do it to complete the cycle.
Anyway, have fun with that Ken! It is your Destiny!
Brian