I'm looking to get the AP2 irons but am not 100% sure on what shaft to get. I was able to demo the 6 irons today with a dynamic gold shaft (stiff). Hit it pretty well with that shaft but I'm considering getting the KBS Tour 90 shaft. Any advice about this (other than go and actually try them)? My club head speed with a 7 irons is about 83-84MPH with a 150-155 carry ( G10).