In the summer of 1930, Shenstone learnt to glide at the Wasserkuppe. This was the premier gliding centre in Europe at the time. There he met Geoffrey Hill and Alexander Lippisch both pioneers of all-wing aircraft. At this time Lippish was leading the technical branch of the Rhön-Rossitten Gesellschaft. Shenstone spent the winter of 1930/1931 working with Lippish and his team developing tail-less gliders (and learning to ski). His friendship with Lippisch lasted for 40 years.