So is this behavior correct?
1. Blinking LED (red): Being actively shot from front
2. Solid LED (red): Was shot from front, no longer being targeted, but still alerting
3. Blinking LED (yellow): Being actively shot from rear
4. Solid LED (yellow): Was shot from rear, no longer being targeted, but still alerting

That is okay with me. It's only the case where (2) and (4) are dark LEDs instead of solid, that I'd have a problem with enabling Pro Mode. I use unlimited LID time, and do manual JTK.