Typhoon I watch the LD finals every year and am amazed at the height those guys get, even using 5-6* heads. When I play with Jake, I see the same thing with him using 9.5* heads. I built drivers for my son and used 8-9* because he also has that same launch height, sometimes more than twice as high as mine, and I consider mine too high with 7*. They both hit around 300 yds. always. My son does this with steel driver shafts, btw. He currently has a Bubba shaft; can't tell you how many graphites he's broken, even in XS.
I'd say, try something a lot lower loft/less spin. Or very tip stiff shaft. Or both. š
