Well, this was a disaster. Not the wine per se but the fact that I opened the bottle at all. It was not due to be opened for at least another two months. I have only just bottled it. But it was at that 'Tired and Emotional' end of the evening where I was fixated on finding an Elderberry for the assembled guests (we were having lamb, and Elderberry wine is virtually a legal requirement in those circumstances) and all thoughts of 'vintage' disappeared.
The wine itself was fine - but young with its usual metallic taste. I must be more careful with my selection in the future.