Conclusion: Some of Adams website quotes on the Speedline Fast 10: "15 yards more distance," "Faster Clubhead Speed," "Faster Ball Speed," "10% less drag," "10% more Forgiveness." It does appear the Adams hit another home run and an outright winner with the Adams Speedline Fast 10, also making the Gold rating honors in Golf Digest driver reviews for 2010'.
Pros: There are many positive takeaways with this beast, but the ones that stick in everyone's mind is aerodynamic and forgiving. This equates to one long driver off the tee. Anyone looking for a high launching driver that increases ball speed due to its innate dynamic structure, this one is an absolute winner.
Cons: Not many but a few worth mentioning... it may launch a bit higher than some want, but they, but be the minority. The other knock is Adams still trails some manufacturers in the MOI (Moment of Inertia) area. The mid spin may scare some of the higher handicappers away.
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.