Shaft

Are these center of the face hits? Could be your swing, How high is it teed up, where in your stance is the ball? you could simply just be hitting on the up. For good shafts look at the Enzo Zolo HL4 or also the RT Technologies Zeus LT.

I'm not a teaching pro so maybe someone with a little more experience with this could help but a cast could also cause a high launch.

Ditto, I have the ProLaunch Red with an Adams adjustable head on it set to 10*. The shaft plays a bit stiffer and has a high kickpoint which means your fulcrum will be a bit higher in the shaft. My driver swingspeed is about 105, regular flex shaft, and I've been averaging about 270 with a nice boring trajectory and a fair amount of roll. Shaft in your driver means alot, high kick point ,stiff tip will generally be a shaft with a lower flight.

"Shaft in your driver means a lot, high kick point ,stiff tip will generally be a shaft with a lower flight."

I just bought very clean and cheap Mizuno TZoid bore thru driver with 12* loft. And, too bad, a L shaft. Ain't bad but really sends the ball high so i gotta change the shaft. Since i gather that the bore thru also leads to somewhat stiffer response and i want a lower flight, should i look for a the high kick and stiff tip? I'll be going for a R flex, SS probably 95.