Distance + Softer Feel The FastLayer Core is soft in the center and gradually becomes firm around its outer edge, thats how it provides both ball speed and great feel. Weve reformulated FastLayer in the Sixth Generation Q-STAR with a lower overall compression, which means improved performance. More Spin. More Control. Featuring Spin Skin with Slide-Ring Material, the new Q-STAR offers unprecedented greenside spin performance. Spin Skin with SeRM digs deep into Wedge and Iron grooves, dramatically increasing friction and maximizing spin for more stopping power on every shot.