Thanks again for the response!
In our testing we are not having success with the upgrade from 10 to 11 preserving existing dig sig (appearance) setting. We are not using a common addressbook. So, we are trying to preserve the existing addressbook.acrodata file for the local user's dig sig (appearance). The installer we have built does not do that and the Wizard doesn't seem to let us do this either. Does this mean we need to do some custom scripting if we want to do this?