A blend of 50% Pinot Noir and 50% Shiraz complement each other with the perfume and spice of the Pinot and the underlying structure of the cool climate Shiraz.
We know that Dr Carrodus would often blend a little Pinot noir into the Shiraz based Dry Red Wine No.2 and that the Underhill Vineyard in the early days had a considerable number of Pinot noir vines alongside the Shiraz. A recent tasting of the first vintage 1989 Underhill Shiraz left no doubt that there was a considerable dollop of Pinot noir blended into that wine. It was delicious.
96 Points (2018 Halliday Wine Companion)