Can't clarify 'cause don't do conversions of RAWs at all. Perhaps someone would enlighten me why conversion is ever necessary? I use Lightroom to post-process RAW files, then export them as Tiffs or as JPEGs for use on the Web and for Slideshows. In Lightroom post-processing any of the Fuji film emulations can be applied non-destructively if you like those emulations. So, again, why conversion?