I am fairly new to the game,although I practice alot,both on courses and the driving range.I have stiff shaft clubs,my clubhead speed is about 90 mph.My question is,would a regular flex shaft provide more distance because I am hitting shorter than what should be expected.For instance,with my 6 iron,I am only hitting 130-135 yards and it should be at least 150.Any advice would be helpful,from anyone with golf experience.Thanks!