I finally had some time this weekend to do some more experimenting, and I have my first user preset. It is a rotary preset that is somewhat subtle and is meant to add demension to clean tones. I did not use the CATCHUP function, so I will double-check the accuracy of my estimated values (although they should certainly be close enough for you to adjust to taste).
Mod Source: Triangle
I am looking forward to checking out others' presets. I really hope this thread takes off, the Modfactor is such a powerful tool with so many variables that I think it will be best utilized by sharing presets and ideas.