Project X LZ features our proprietary Loading Zone Technology which produces maximum shaft load during the downswing for greater energy transfer. Loading Zone Technology is achieved through variable wall technology in the shaft’s butt and tip sections and a reduced stiffness in the midsection. Golfers can not only feel the technology, but can see it, in the rapid tapered steps from the grip through the midsection of the shaft.Thank you for looking. Please keep in mind that there are No Returns on Custom Assembled Items or Used Products. There is a 20% Restocking Fee on all other returned items. Thank you for your time and understanding.