We have tried various grape varieties since we started.
Initially we planted Pinot noir, Pinot gris, Chardonnay, and a selection from a local hobby grower identified as Pinotage. Unfortunately only the Pinotage identified being hardy enough for our exposure. In more recent times we are trialing some small planting of Gewürztraminer and Albarino.
Interestingly we had the "Pinotage" DNA tested and it would appear it is Plantet, a Siebel selection bred for cold conditions. While we are not cold the thick hairy leaves and very tight bunches explains why it does so well in our very exposed situation.