Funny. I just decided on the metal because the reviews said it you spray enough on them and let the cakes cool completely, the buildings come right out when you bang the pan.
Ill try that method on my metal little flower bundt pan then. The instructions said to let sit 10 min, then remove. Like most metal pans I guess.
Let me know how the metal one works For you, and Ill do the same with the silicone. I was concerned the silicone, being flexible, might not put such details into the cakes.