I've always struggled with hybrids, and my typical draw turns into a pretty severe hook with my 915 4H. Despite this, I love the height I can get with it, and the combination of the height/backspin makes the ball stop nicely on greens.
I tried out the new 718 T MB 4 iron and while it's much easier to hit for me, I really struggle with the spin rate. It's way too low for me (2500 rpm) to hold a green, and I can't achieve the height of my hybrid. Any recommendations for a shaft that will launch the ball higher and increase spin rate?