Conclusion: The Ping K15 driver combines a large 460 cc profile with a longer heel to toe. The design keenly positions the COG [Center of Gravity] low and away resulting in high launch and low spin. Another way of putting it is that it launches rockets!
Pros: SRT Technology and the 10% weight shift is what makes this driver for the masses. Distance, accuracy and forgiveness is the common theme in testing the Ping K15 driver.
Cons: some testers thought it was a bit too loud... but it's all good.
Summary: bought the k15 last month. decided to get one with 12 degree loft. getting more distance and height, and also going straight. i have a g10 driver 10.5 degree loft with draw face. like it a lot and it has been good to me but after only 4 weeks with the k15 i can see a good difference.