Well… the Doppelt Fermentiert aka Schmalzlerfranzl Original is IMO one of the two weakest of the Bernard Schmalzlers.
The Aecht Altbayerischer and the Aecht Fresko are the stronger ones - according to nicotine.
Personally prefer the Aecht Altbayerischer as my favorite Schmalzler, in general. The Schmalzlerfranzl Original as well as the Brasil Feinst / Schmalzlerfranzl Gold are the two weaker ones in nicotine.
If you like Schmalzler and want so nicotine hit. I d recommend you the Aecht Fresko or the Aecht Altbayerischer Schmalzler.
But in taste / scent the Schmalzlerfranzl Original is a good choice.