I'm starting to learn more about orchestral programming and using expression on samples. I normally try to change the expression at the start of each note, but I'm unsure about how I should use expression in faster lines since it's difficult to use the aforementioned method for them. What is the best way to use expression on fast lines? Also, can the instruments in BBC Core be panned with good results? I know that the library is pre-panned, but I was wondering whether panning them in the Spitfire player would be a good idea in case I ever wanted to change their position.