Most the grids I get (in vanilla) are crap. I always went there just to appease BdU. I never paid attention to renown levels for completing as i am not aware of the renown formula, and lack script reading sense the file junkies here have. I can drive the heck out of anything motorized, but the files beyond simple changes baffle me.
I also play the WAC 4.1 mod and the grids they give tend to put you near the action or in position to participate in it.
This question intrigues me as well. In basic and in the super-mods. I am interested too.