There has been a question mark about the ageability of Torbreck wines because of their richness and ripeness of fruit and their relatively low level of natural acidity.
I like to drink Shiraz when it has developed complexity, but still shows levels of freshness and fruit. My usual drinking window for good Australian Shiraz is 6 to 9 years, with 7 the sweet spot. I prefer the leading wines more mature: Grange 20 years (depending on vintage), Hill of Grace 15 years.
Recently I drank a number of mature Torbreck wines: 2002 RunRig, 2001 Les Amis, 2002 Struie. How did they shape up? In summary, pretty well. The concentrated fruit was still there, although a bit drier than I would have liked. The tannins had lost some silkiness, but the structure of these wines was holding up well. The RunRig still had its sweet core, the Struie was quite smoky, whereas the Les Amis had lost some of its richness and was on the downhill slope.
Where does this put these wines? I think they are middle distance runners. Drinking them at 7 years is probably better than at 15.