I'm struggling with ego and doubt on my spiritual path. Is there an example from the Satcharitra of how Baba deals with a devotee's ego?

Yes, the story of Boss Dharamsee in Chapter 35 provides a powerful example of how Baba helps devotees overcome ego. Dharamsee arrived with a critical mindset, questioning the devotion of others and internally judging Baba's actions. His ego was evident when he thought, "If he is a saint, how does he not know That I do not like these grapes?" Baba, knowing his thoughts, didn't lecture him but instead engineered a personal miracle. By turning the seeded grapes into seedless ones specifically for Dharamsee, Baba directly addressed his doubt and pride. The text explicitly states, "All his ego dropped away, and love for the saint was born." This illustrates that Baba works in mysterious ways to dismantle our ego and replace it with love and faith.