[O.B.Left]

Well the longer the club, the longer it takes to switch ends, making maintaining the steady rate of acceleration more problematic as the rate you establish in Startdown has to maintained longer to make it through the ball. Far more common a problem with a driver than a wedge for this reason. Its another counter intuitive golf logic thing in regards to the longer, further hitting clubs.

You can experiment with various slow backswings and slow startdowns to see which one allows you to achieve the best impact conditions. Camilo Villegas is crazy slow from the top and he hits it pretty good. Everyone is a little different maybe. But remember it isnt just about clubhead speed, solely. You could have a higher clubhead speed but one that is in the process of decelerating , or even accelerating but at a diminishing rate and not get the results you would from a heavier but slower clubhead speed.

Simply put, for maximum distance, try to have as heavy a feeling at the #3pp at impact as you can by trying to achieve the same at Both Arms Straight.....way after impact. With a driver it will seem like a very gradual build up of Lag Pressure.