When I bought my first kit ( a WE sauvignon blanc pr) I was under the impression it was all sauvignon blanc. It's not well advertised as anything else, but I suspect it's already blended. Does anyone know if this is true? And if so, I suspect the actual percentages are like restaurant recipes- secret. But I'd like to know what they are, both to improve my knowledge, and possibly to tweak pre-bottling. Any advice/info?