I think that is not the same situation, but I am converting samples from sfz/sf2 to Decent Sampler and I am using Sforzando and sfZed to prepare all, and a text editor to modify some values following the DS specification.
I prepare the dspreset/dslibrary files, and confirm that all is ok with the Decent Sampler standalone app.
Take in account that sfZed is for Windows only, so I am doing all this on Windows.
I am going to follow this thread to be informed if someone share his/her experience with this.
I hope that helps.