If your question is directly related to simply getting the external module to produce all the sounds instead of your S900, then yes if the module has better sounds your styles will also sound better.

It's likely that you will have to adjust the volumes of the styles however as they won't match as well as they already do on the S900 as the styles where set for the sounds used at that time.

Regards.
James.

[This message has been edited by Irishacts (edited 03-24-2009).]