The new Rogue ST has a new Jailbreak ST face that further stiffens and strangthens the crown and sole which adds more ball speed especially on mishits. This is the most effective Jailbreak face yet especially for fairway wood application. The Rogue ST Max is extremely forgiving and it retains ball speed better than other fairway woods on the market due to the Jailbreak ST face. , Jailbreak technology has lead Callaway's products for the past years to make their woods incredible. I've been using them for the past couple hears and absolutely love them. Jailbreak technology is the plates surrounding the face of the wood. This means that on centered strikes, the ball will hit right in between the plates, generating as much ball speed as possible. However, the beautiful part is on off centered hits, jailbreak technology helps you out as you don't lose as much ballspeed on off centered hits. The technology was designed for maximum forgiveness and distance and it does just that. , The new A.I.- designed Jailbreak system has been redesigned to promote speed and stability. The two Jailbreak "batwings" are pushed to the outside, providing a stiff feel while allowing the face to flex for high ball speeds. In conclusion, the new jailbreak system is a nice upgrade for everyday golfers who like the Callaway brand.