Golfers will do anything for a slight edge, like wearing pendants that claim to "tune" your body's energy for lower scores, so why not balls that might assert a calming influence at address?

The key to the Srixon Z-Star Tour Yellow ball is its greenish tint, since psychological studies have shown that green has a soothing effect on people. It’s why talk show guests wait in a “green room” and hospitals paint their walls light green. Studies have also shown that yellow is the most visual color in the spectrum, which can be especially helpful in looking for a lost ball (not that I would know anything about that, of course). 

But this isn’t some low-priced gimmick. The Z-Star line, which also includes the Z-Star X Tour Yellow for players with higher swing speeds, is Srixon’s flagship, urethane-covered premium ball. Staff pros like Vijay Singh, Jim Furyk and Tim Clark have already put the balls into play (they hit stores April 1). Both models also feature Srixon’s new “Energetic Gradient Growth” core technology for more ball speed, higher launch and lower spin, and 324 large seamless dimples to reduce wind resistance.

Of course, colored golf balls are nothing new. Perhaps the most famous is the orange Wilson ProStaff Jerry Pate used to win the 1982 Players Championship but the orange orb never caught on.

Maybe yellow will. Tennis made the switch. Why not golf?

$40 per dozen, srixon.com