Axiom Insanity. Cheap price fast shipping in the US. Axiom says this about the Insanity: The Insanity is best described as a worn-in MVP Inertia, with a slightly more high-speed turn and a diminished fade. For average power throwers, the Insanity will be remarkably straight, while high power throwers can execute precise flip and turnover lines with ease. Whether you’re looking for that sweet-spot worn disc flight, or you’re looking to achieve bigger Inertia lines with less power, give Insanity a shot.