Mitsubishi MCA-Golf New Diamana ZF-Series 60 Stiff Flex Driver Graphite ShaftA brand new Diamana ZF Series shaft. Diamana ZF-Series takes the signature ?moothbend profile Diamana BF-Series and pushes it in just the right places. Diamana ZF shafts feature moderately stronger, more stable butt and tip sections with a slightly softer and more active m..