ERG mode - when to use?

Training
83

Confirmed tonight during my SS workout why I dont like the Suito’s management of ERG. At a high cadence for me (90-95rpm) I would exceed the target. At still a high cadence for me (90rpm) I would track around the target but depressingly just below it. At what is a more natural cadence for me in the heat of the house (80-85rpm) I’d sit comfortably below the target and resistance never seemed to be upped by the Suito’s ERG. I’m using a double sided power meter now; when I was using a single sided power meter the Suito’s ERG seemed to up the resistance too quickly dragging me into the spiral of death. I want a half way house :-/