If the system is put together well enough, there should be no problem in creating these variations. Here are a handful that have been great thus far:
"7" in front of SPOT:
SLANT from condensed split
Bunch-Motion to Empty
After posting these images, I realized they are all some form of no-backs. Are all the adjustments we made of this nature? Of course not. They were randomly selected. However, an emphasis on these kinds of formations in skeleton work can provide a springboard for the understanding of protections/ numbers the QB must have.