Summary: I upgraded to the Adams Speedline driver w/9.5 degree loft angle from the Mizuno MP-001. I picked up an average of 10 yards on my drives and a slightly higher ball flight. The Speedline is a more accurate driver than the Mizuno I was using previously and it only took a few swings to get used to the longer shaft length (about an extra inch)46.25" vs. 45". The shape of the club head is also pleasant as it has more of a traditional shape which I prefer.
Summary: I have tried several "state of the art" drivers over the last five years, with limited success. As a 10 HCP, I am looking for consistency first and increased distance second. I found BOTH in this excellent driver. My distance has improved by 10-20 yards on average and my fairway hits are up over 25%. This is significant improvement.