How in the world would you make a manip without light? YOU WOULDN'T BE ABLE TO SEE ANYWAY WITH OUT THE LIGHT!!!! I'M SCARED OF THE DARK!!! D=
But, all joking aside. I'm guessing you mean the light beams you been using lately? I don't see any problem with them. You haven't been overly using them, they have worked well in a lot of your pieces, and I don't know about every one else, but I've always liked light beams.