A proper HLG plane is definaltely worth every penny. Speed range from dead slow Harrier appoaches to blindingly fast low passes. Has been slope soared in wind from 1.5 m/sec to 12 m/sec. Penetrates extremely well and performs every trick in the book except knife edge. Climbs to 150 m altitude on 40m bungee with 100m gut in a slight headwind. Clocking more air minutes than the engine dudes every time. A real gem.