I've been lucky with my BP/Royals I suppose. They eat year round, day/night they don't care. They're both pressed against the glass any time I'm defrosting prey in the room, regardless of prey type or time of day.
But I honestly think a large factor in that is that I feed on their schedule and don't offer anything but small rats. I feed conservatively by comparison to many in the hobby. But my animals maintain healthy body structures eating on their schedule, so I stick to it.
Again, that's what works for me. I know keepers more experienced than I am who have PITA BPs.
And I STILL can't get my Borneo STP to eat with any kind of consistency.