What is a good thruster Max?

Excuse me, could you please clarify what you mean by 'a good thruster Max'? Are you referring to a specific type of propulsion system, perhaps in the context of aerospace engineering or marine technology? Or could it be a reference to a performance metric for a certain type of engine or motor? If it's the latter, what industry or application are we discussing? Understanding the context would help me provide a more accurate and relevant answer to your question.