As I ventured into the cellar, I found this 2005 Isabel Sauvignon Blanc. I was a bit worried about the age, as you are supposed to drink these straight away, more about this in a minute.
The Isabel has three features I like: the gooseberry flavour is ripe, not green. The wine tingles along the tongue to the back palate, and is not sharp. It has good length and the acidity is there, but not overwhelming everything else.
I only noticed a hint of mellowing in this wine, but it was still perfectly fresh. This wine has good structure and handles a bit of age very well.