I upgraded to the King from a several years old TRail+. The stock shaft in the King is much better and I like the ability to adjust loft and lie. I did not find much impact from moving the adjustable weight from front to back but the loft adjustment definitely affects ball flight.
The Cobra King F6 Fairway Wood has Front or Back Adjustable CG Technology. A sliding track design allows a 20-gram weight to position along the club-head sole to optimize the center of gravity location. This brings a whole new level of adjustability to the club and gives players the option to choose which settings are best for their swing. Moving the center of gravity location to the back of the club head creates a more towering ball flight with greater forgiveness, while moving the center of gravity forward delivers a penetrating ball flight with more roll.
The 3-4F is adjustable from 13 to 16 degrees, the 5-6F is adjustable from 17 to 20 degrees and the 7-8F is adjustable from 21 to 24 degrees. A Speed Channel around the face increases the size of the sweetspot and produces faster ball speeds all over the face. MyFly8 Technology with SmartPad allows you to manage trajectory and fine tune launch conditions to maximize distance.