I'm afraid there is no documentation to confirm if this is a supported option. The most relevant article is possibly the below one:
http://www.symantec.com/docs/TECH161876
I state this as most relevant, as no encryption has actually taken place yet in this scenario (just that the software is installed). This article states it is not recommended (although I am assuming they consider the Framework Client part of SEE-RS in this case).
Another article that has a bearing is the below:
http://www.symantec.com/docs/TECH104163
Which suggests it is possible to clone a SEE-FD encrypted disk, but this must be an sector-by-sector exact copy so not really applicable.
All in all, it's not supported, but feel free to give it a go and test