The Signature Gag has a few garble options:

• quick garble.
  
  • e.g. "gggoa nnng hog haae"
  • uses the least sim resources, and is very quick, even for subs who speak in paragraphs :-P  
    
  • speaking on /0 automatically results in quick garble (quite moot for smart garble if plain text is displayed by the viewer, isn't it?)
• smart garble
  
  • each time the sub says something, you can almost make out what she is saying.
  • have her repeat herself - the garble is different each time, so you can almost guess what she's saying. It's a smart garble.
  • speaking on /8 automatically results in the smart garble.
  • There are two types of smart garble:
    • garble tight
      

                                            - default garble, harder to distinguish
                                            - ring and ball gags have different garble patterns.
                                            - with Restrained Life Viewer, all outgoing IMs are not allowed, even to sub's owner.

• garble loose
  

                                            - only available at Gag Circle Novice and above.
                                            - easier to tell what sub is mumbling about.
                                            - with Restrained Life Viewer, only outgoing IMs to sub's owner, and up to three friends on exception list are allowed.

Subs who have reached the Novice Circle can garble in lower case.

The garble options are in the gag menu (say "/1g")... "other" > "garble...". New buttons will show up for subs who are Novices and above.