LA with the driver

[RASWING]

MJ,
Just had a short trackman session (lunch hour) at my buddys out door range and I noticed something strange and I wanted to ask you about it to help me process the info...

Ok I was hitting drivers trying to work on getting better numbers... Something seemed strange...

Driver
Path was good never moved always around (-1.6 and 2.0 )

Club face moved between ( -1.8 to 2.3 )

AOA - ( 1.0 to 3.3 )

DY Loft was 15 VL 13
Ball speed was 160 to 164
smash was (1.49 )

VSP (48 to 50)

Even got one AOA up to 5.5 but the path was horrible 10 to the right


Shots to me looked like pulls but they were hit well and carry was good and the pulls reduce spin number avg was 2500 so I was getting 25 to 28 yards of roll.

Now why were the pulls better than the pushes in the numbers ?

Pushes
( shorter carry /higher spin / vsp 50 and more dy loft? )

Pulls
(more carry ?/ less spin/ better dy loft, better VSP 47)

The key to better numbers came when I switched to a heavy shaft 72 grams and 1 degree more of loft 9.5 , X flex )


The lighter shaft high back spin 3500 and produced pushes ?

Thanks
RA

[Michael Jacobs]

MJ,
Just had a short trackman session (lunch hour) at my buddys out range and I noticed something strange and I want to ask you about to help me process the info...

Ok I was hitting drivers trying to work on getting better numbers... Something seem strange...

Driver
Path was good never moved around between (-1.6 and 2.0 )

Club face moved between ( -1.8 to 2.3 )

AOA - ( 1.0 to 3.3 )

DY Loft was 15 VL 13
Ball speed was 160 to 164
smash was (1.49 )

VSP (48 to 50)

Even got one AOA up to 5.5 but the path was horrible 10 to the right


Shots to me looked like pulls but the where hit well and carry was good and the pulls reduce spin number avg was 2500 so I was getting 25 to 28 yards of roll.

Now why were the pulls better than the pushes in the numbers ?

Pushes
( shorter carry /higher spin / vsp 50 and more dy loft? )

Pulls
(more carry ?/ less spin/ better dy loft, better VSP 47)

The key to better numbers came when I switched to a heavy shaft 72 grams and 1 degree more of loft 9.5 , X flex )


The lighter shaft high back spin 3500 and produced pushes ?

Thanks
RA

RA,
Some food for thought

On the shots that went left:

Club is more closed and therefore a reduction in loft. Did you see the dynamic loft differences between the right or left shot? Where they hit on the center of the face?? Were there toe or heel hits - toe and heel travel at different speeds, especially on the bigger heads. Here is a chart from the Flightscope Convention:

[RASWING]

MJ,
Thanks I will ask my buddy to print out the data next session I get on the machine. I cant remember the info. I will make sure to take note of it

Thanks
RA