The all-new Slick SLS... The new generation of Slick wings combine the Strong / Light / Superior (SLS) technology with a multitude of design and performance upgrades is designed around the Mini Boom concept, this offers some unique advantages over other wings on the market. This system gives you all the control of a boom, along with all the benefits of a center strut. You get improved control over the profile and luffing stability, plus a much more integrated connection to the wing itself through the Mini Boom.