SF iSRD unavailable with DNG scans

Nate responded on my facebook post in case anyone else has the same question, " Yes, it is a pain that Silverfast is this way… with Vuescan you can include the dust removal already factored in the RAW output. But Vuescans dust removal is not great. The best dust removal seems to be the native programs (i.e. EpsonScan), so if that is important for you, I would try the EpsonScan workflow on the forum (https://forums.negativelabpro.com/…/scanning-film…/345) - otherwise, the Silverfast RAW output is good, but will spend more time removing dust. "