When designing block diagrams, I tend to spend way too much time making sure things are aligned perfectly, down to the pixels. It's really annoying. This is most noticeable with bends in wires. I don't like having "uneven" bends, or bends where they aren't necessarily needed, or wires that cross unnecessarily. For instance: Now you might wonder why I have bends there if I can just move the wires so they look straight. Well then they won't be perfectly aligned with the node's terminal. For ins