You seem like having a huge amount of dedication to detail, so I'm asking you directly:
Please, if you found good settings for chubby models, release them, or even better, send them to me, so that I can include them in the var. I really want to ship this bundled with a set of good presets to start with. But for this I need the community to contribute. I don't want to mess with bodyshapes I'm not intersted in; my time is better spent developing this (or other stuff) further.
I said this many times before, but till today I did get nothing. It seems that everyone is just having fun with the defaults, which is good, as it tells me that they are indeed viable. But I think the experience could be much better for many people if they had a preset that actually matches their models shape.