A couple of months ago I decided to help lower my ball flight by switching to the V1 from the V1x. It really worked and the flight is much flatter and balloons less, plus I've noticed an improvement around the greens.
Sinc the switch my gross scores have been: 73, 75, 73, 75, 79 (horrendous conditions in 1st round of club champs), 74, 75, 69, 71, 72, 70, 74.
My handicap has come down from 3.7 to 2.3 which is my lowest ever.
I'm sure it can't be a coincidence that using the right ball for my game has led to such a big improvement.