The Phi Viola is a wing that appeals to potentially the widest range of pilots imaginable. The majority of sizes are EN A, and are thought of as lightweight hike and fly wings, and that's correct, as it's a lightweight version of the Sonata. However, it's also a very capable mainstream wing, and a mini wing for alpine flying or high wind soaring. It is able to cater for all these demands with a range of eight sizes, and certification from EN A to EN D, depending on the size chosen, and the use of extended weight ranges.
Miniwings for high wind soaring are one of my personal obsessions and I spare no effort in finding the worlds best. I live in Auckland, New Zealand with large picturesque sea cliff and conditions that are often strong, laminar and superb for high wind soaring/speedflying. This is unusual in the world, so we are lucky and constantly looking for better miniwings to give us more fun in our smooth 20-45km/hr coastal winds.