If you think Titleist only pays close attention to its tour-calibre Pro V1/V1x balls, consider that its latest version of its lower-cost TruFeel ball required the company to make several adjustments to its manufacturing process. One of the reasons was the use of a significantly larger (and low-compression) core that measures 1.6 inches. That meant re-writing all the software, re-designing the cup geometry and upgrading equipment
to control the flow 0f materials in a precise manner. The reason for all the enhancements? The desire of the TruFeel player to gain distance and keep the pillowy soft feel the ball is known for. Of course, a larger core means a thinner cover, resulting in improved feel on short shots and putts.