The g10 irons are awesome! My first rd with those babies was good for an easy 61. The high trajectory really does make a difference. With the right ball, short irons will spin back a bit and the long irons stick very nicely as well. In terms of drivers, I have both the r9 and the ping. I alternate the clubs depending on what course I play. I would say the ping is the more versatile club as its higher traj helps keep the ball in the short stuff and also sail over trees to cut off doglegs. However, the r9, is a beast at cutting through the wind at RSG and St Andys and its extra distance will really help u on a few holes on BP Black and Congressional.
Hope this helped a bit...