I'm a bit confused about the text differences between Aware of Presence and Awareness of Location (both on page 260 of the Core book) with regard imprecise senses and blindsense.
The text for Aware of Presence seems to suggest succeeding at a Perception check with an imprecise sense makes you Aware of Presence, while succeeding a Perception check with blindsense makes you Aware of location.
The text for Awareness of Location, on the other hand, implies success at a Perception check to detect a hidden person with an imprecise sense makes you gives you Awareness of Location, whereas blindsense apparently doesn't require you to make a check.
These seem almost contradictory?