Precision shaping of the face thickness in each club increases the size of the sweet spot and generates hotter ball speeds for longer distance.
Standard models have larger footprints with a higher MOI and a deep CG for better playability and higher trajectories.
The clubhead is heat treated for enhanced strength, which enables the aggressive VFT pattern, and produces a pleasing, resonant sound at impact.
Tour models have a smaller footprint, a traditional hosel that inspires confidence at address, and are highly workable with low, penetrating trajectories.