The Tour i is very long because of the tungsten-infused outer core and a high-density mantle layer designed to shift weight farther from the dual core to minimize adverse spin [too many rpm's ruin the flight]. The purpose is to reduce spin for straight tee shots and optimal distance. And the HEX dimple pattern can't be beat in the wind!
Is it the ball for you? If you don't have access to a launch monitor but you're concerned about getting more distance, look for a ball that reaches its apex (highest point) early in its flight then levels out. This type of flight gives you more carry and therefore added distance and that's what this new Callaway is all about. What you don't want is a ball that starts low and shoots up like a jet airplane taking off. Up-shooters indicate too much spin resulting in shorter shots and the tendency to hook or slice.
Durable, hot, it spins, and you can chip, pitch and putt with it - don't miss trying this ball.