I found a recipe on the net for sourdough scones and baked them as a trial. Not a huge success and I'm not sure how they could be improved. The scones rose a little in the oven, but I'm thinking they might need to proof a little while before baking. Will try that next time. It was also a very dry dough so I'll use less flour next time.
My usual scone recipe is a very wet mix which has minimal handling - I combine wet and dry ingredients in a bowl and plop the mix onto a floured counter, sprinkle more flour on top and gently press the dough to flatten before cutting.