A big part of your questionis undefined still .. what version of 2011 did you get? If your 2011 was an ultra or everything pak, the answer may be different, as you would only be adding the *new* realtracks, and that would be up to you to decide if you want them.
If the preceeding pak was a smaller pak, the upgrade may be substantial.


I do not work here, but the benefits are still awesome
Make your sound your own!