Engineers took mass out of the tip of the shaft and added more under the handle and still maintain the desired swing weight of D3 .
The handle allowed them to add 5 grams of weight to the head compared to a traditional shaft .
Engineers took mass out of the tip of the shaft and added more under the handle , which allowed them to add 5 grams of weight to the head compared to a traditional shaft , and still maintain the desired swing weight of D3 .