I am a golf professional who is "getting back" in to MY GAME. I love the AP1 irons...but am trying to figure out what shafts to try, before I purchase a set. My Dynamic Gold days are long gone. HERE ARE MY STATS: Age, 57, standard 8 iron 150-55, standard 5 iron 180-85. I have a serious interest in graphite; and was intrigued by Mitsubishi's "Kuro Kage Low Balance 85". Any comments on that; or any other shaft, would be appreciated. Also, I am debating on whether to start the set with the 4 iron...or 5 iron. And what hybrid alternative might make the most sense.