Great question, what about for clustered elements included in kits?
I try to take one day at a time, but sometimes several days attack me at once.
I guess some people may like things pre shaded and I appreciate that, however I would prefer no shading at all. I don't mind if you want to include both in a kit but, as with some things, if I can't find what I'm looking for, I pull other things apart and use them. If they happen to have shading on them, it just takes longer for me to get what I want.
So if there is a choice just between no shading and shading, I will choose no shading. If the designers want to include both.. then both worlds are happy.