Update to this problem. Soon everything will work properly. YAYYYYYYY. (Hey Roel, soon you may not need the IH after all. Now the hiss in mine is gone COMPLETELY. After I have the pitch bend function, I'll have it all again.)
Here's the email I got:

Hi Kendall,

your observation with the Vocalizer was correct.
In fact the Vocalizer into the Midi file was working unproperly with a range
of +/-12. Now with the Update 4.0B this has been fixed allowing a normal
Pitch Bend operation on Vocalizer too.
In case you have an original SD1 ( without the 4.0a Update ) you can take
profit of the SD1ORG Release, which offers you all the new software
implementations while keeping the original Sounds.

Thanks for cooperation

Sandro Fontanella