I found an instance where bento actually ADDS functionality to an existing product instead of breaking it. With the "snaggletooth kobold" mesh body, there are some shape slider options it does not respond to when over 50. These sliders work over the full range in bento viewers (at least in firestorm 4.7.10, I haven't tested it in the SL RC).
Pre-bento viewer: https://gyazo.com/d7c93436a2d10a3f7656886d009ba6fc
Bento viewer: https://gyazo.com/2d5f3805f13259cfcc3ebaf2a4bde216
After posting this someone informed me that this is an issue with the female shape grid wide, not specifically with the kobold. My mistake.