Since people still hesitate to publish their MIDIbox SID patches, I thought it makes sense to inspire you by starting a new bank with a dedicated topic, and to give you the chance to fill the empty patches until all 127 slots are full.
How does it work:
download the attached .syx file (packed in a .zip file), and upload it into an unsused bank of your MBSID with Rutger's Librarian.
Listen to the already available patches, and start to vary them, or create completely new ones from scratch.