crgade:what about the level 69 i15's?
Like Sanco says if you can handle the meter speed they are extremely accurate, not to mention that 3i that goes 215. I have them and played them long enough to learn them and like them a lot but something curious showed up.
I got the Tri driver before I got the i15s. That driver has the fastest meter but for some reason is fairly easy to ding. However, it made using the G10s a little harder because the tendency to pull the irons increased due to the slower meter. That's when I tried the i15s and it made a huge difference. With both meter speeds the same it became easier to hit the irons. (The G series balls will slow all this down.)
Enter the R9 driver. Supposedly it has the same meter speed as the Tri with a little difference in accuracy and forgiveness plus a little more distance. Wrong. The meter speed is fast but different. The meter on the Tri accelerates in the last 1/2 of the swing and you have to be quick to hit it. The R9 is fast but doesn't accelerate during the swing so it's a little easier to hit and it happens to make the G10s more compatible meter-wise.
In the end I think you can get away with more mistakes using the G10s but the accuracy of the i15s is really nice. The R9 driver is what keyed it all for me because of the way it swings. Match your driver to your irons and it will help you a lot. GL