So, both cards replace the timing of when a pilot engages. When both are used at the same time by opposing players, there’s a couple of different interpretations I’ve seen:
1) Player Order is significant. Whoever goes second “wins” the battle of when to engage.
2) Both happen. However, since the pilot has already engaged at PS 7, the pilot cannot engage anymore at PS 0. Thus, Heightened Perception always “wins”.