The Pro V1x compared to the Pro V1 is a 4 piece golf ball that offers lower spin with a higher launch for extraordinary distance whilst the new thermoset urethane elastomer cover delivers more short game and spin control. This new 'thermoset' cover allows Titleist R&D to actively change the chemical composition of the cover to increase feel without affecting the famous durability of the Pro V1x. To achieve this Titleist use different methods to manufacture the cover than most other golf ball brands. All the thermoset covers are made in Titleist built research facilities and undergo extreme and rigorous performance and player testing to make sure every single golf ball has the consistent flight and spin control that every player, whether tour pro or your average club golfer, needs for the improvement of their game. This is increased with the paint system introduced in 2013 keeping the balls whiter for longer.