Welcome to the CellarHand newsletter for May 2021. A bit of a short-and-sweet edition this month, it nevertheless includes three urgent and mouthwatering releases. The most complete of these comes from the Smith Cullam clan of Frankland Estate, whose suite of single-vineyard wines is out now. From 2020, that means Isolation Ridge and Poison Hill Riesling, while the Syrah success story continues with Isolation Ridge and SmithCullam 2019s. Rounding out the review is the benchmark Cab Franc blend, Olmo's Reward, from 2018. From Victoria,…