more changed than just the oil: https://github.com/wube/factorio-data/c ... 906db835aa
that's a lot to undo.
But no, I actually like one of V's proposed solutions. He was going to add a second basic oil processing recipe that added crude -> Heavy and light. I'm probably going to implement something similar, or just drop my top heavy oil processing recipe (lots of heavy and very little PG) down to basic processing.
I have a plan.