Callaway Odyssey X-Act Tank Chipper review shows how you can banish the chipping blues with quality counterbalanced chipper. Includes exclsuive video with designer Roger Cleveland. More at www.golfalot.com/equipment-rev...
You're right it is not a new concept and Callaway had something similar called the Marxman Xact in 2008. What is new with the X-Act Tank is the counter-balanced SuperStroke grip that helps stabilise the hands and also enables you to grip it anywhere you like because it is the same width all the way down.
Does this chipper conform to USGA rules? USGA states that an iron cannot have "appendages for aiming purposes". Isn't that what the back part of the club is?
