if i am correct, rifle isn't really a shaft upgrade. it's a shaft brand. then there's true temper which manufactures dynalite, dynamic gold and dynamic golf lite and sensicore. it's tough to recommend a shaft for you without knowing your game. how about this? how far do you hit your typical 9 iron? 7 iron? 5 iron? knowing your iron distances will help us get a guage of your swing speed. then we can recommend stiff/regular flex and a lighter or heavier shaft.