Thank you for sharing your squid cooking method! Marinating with lime juice is an excellent choice, as the acid helps tenderize it. Your focus on a short cooking time is absolutely crucial to prevent rubbery squid.

A couple of gentle suggestions from one cook to another: First, you might want to rinse the squid and pat it dry after the 5-minute marinade. Leaving the acid on too long during cooking can actually start to "cook" the protein excessively, leading to toughness. Second, for the most tender result, try cooking it over very high heat for just 60-90 seconds total, until it turns opaque and firms up slightly. The "boiling" stage might be overworking it.

Your technique shows a great understanding that squid needs care. Adjusting these small steps could make your already good dish exceptional, ensuring it stays melt-in-your-mouth tender. Keep up the great work in the kitchen.