I have the Stage 2 demo in my ears right now. I don't have the Stage 3 to compare right now, but I am still quite familiar with the signature of Stage 3. I auditioned many different demos of Stage 3 before, so I can definitely rule out a mix-up. My early verdict: Stage 2 has warmer mids, almost with a very slight veil. It's difficult to say without direct comparison, but I am 100% sure the Stage 3 hit my understanding of perfectly neutral voices. I also hear a mild mid-bass boost with Stage 2. I will listen to them some more and make sure I compare them with Stage 3 (and Stage 4 which has much warmer mids) soon. I am referring to Rhines Custom demos, btw. But my early guess is that VE labeled the S2 and S3 demos wrong that they sent to the shop.