Your assessment resonates with me (someone who has depressive and hypomanic episodes). I've always conceptualized hypomania as having a much higher rate of false positives (in such a way that e.g. every attractive woman in sight seems to be heavily flirting with me), but false positives cut in both directions: when depressed, I will e.g. notice and lament minor aches (as representative of an enduring state of physical pain) in excess of what "balanced me" would.

You have given me new perspective on my wobbly biases. Thanks a lot!