Does anyone have experience using S04 or 3309 rootstock growing on limestone? My property is on the Niagara escarpment and I have an exposed limestone ridge that I want to plant with some Riesling. It’s non traditional and not really a winter hardy choice but I really like to drink Riesling so I want to try it. From what I‘ve read S04 seems to tolerate clays and limestone better so I’m leaning in that direction. Any thoughts on that?