The "Critical 5"

[rcw]

VSP

So what exactly would be the negative effects of having a low VSP?

My irons are 4 degrees flat. I swing the club pretty much back at the same angle it was at address. I think that is part of the reason for the low VSP.

My other numbers are pretty good on average about 3-4 down Angle of attack
with 1-2 degree left HSP(With a 6 iron). Clubface is usually under control.

I will put up my exact numbers later when I have it with me.

I just want to know why it would be a bad thing to have a lower VSP?

 

[savydan]

The lower the VSP, the more the downward Angle of Attack shifts your Club Path to the right of your HSP.

How much? Well here's the formula:

CP = HSP - [AA x tan(90-VSP)]

So, given:

HSP = -2.0
AA = -4.0

Let's say your VSP = 55.0

90-55 = 35

The tangent of 35 is 0.7002

CP = -2.0 - [-4.0 x 0.7002]
CP = -2.0 - [-2.80]
CP = 0.80

So you're true CP is 0.80 degrees to the right of the target line.

What if you're VSP was 45 degrees?

Well, then, your true CP is:

CP = -2.0 - [-4.0 x tan(90-45)]
CP = -2.0 - [-4.0]
CP = 2.0 (positive)

So:

By lowering your VSP by 10 degrees from 55 to 45, your CP shifted from 0.8 degrees to the right of the target to 2.0 degrees right of the target or 1.2 degrees.

So, all else equal, your lower VSP "amplifies" how much your Angle of Attack moves the CP away from the HSP.

 

[holeout]

The lower the VSP, the more the downward Angle of Attack shifts your Club Path to the right of your HSP.

How much? Well here's the formula:

CP = HSP - [AA x tan(90-VSP)]

So, given:

HSP = -2.0
AA = -4.0

Let's say your VSP = 55.0

90-55 = 35

The tangent of 35 is 0.7002

CP = -2.0 - [-4.0 x 0.7002]
CP = -2.0 - [-2.80]
CP = 0.80

So you're true CP is 0.80 degrees to the right of the target line.

What if you're VSP was 45 degrees?

Well, then, your true CP is:

CP = -2.0 - [-4.0 x tan(90-45)]
CP = -2.0 - [-4.0]
CP = 2.0 (positive)

So:

By lowering your VSP by 10 degrees from 55 to 45, your CP shifted from 0.8 degrees to the right of the target to 2.0 degrees right of the target or 1.2 degrees.

So, all else equal, your lower VSP "amplifies" how much your Angle of Attack moves the CP away from the HSP.

I barely followed all that , but I'm pretty sure that was spot on.

Anyone who didn't follow that, think of it this way. Low VSP is a GREAT indicator of being underplane. I know from experience.

 

[Brian Manzella]

Correlations.

Getting the VSP close to the "static fit" lie angle of a particular golfer is very important in some instances.

A low one is a sure sign of the dreaded "swipe" hard low & left.

To raise your VSP, try to either go from FLAT to tumbled steeper from release point to impact, or just try getting the club to exit the impact interval more vertically.

You may find that all of this increases your angle of attack, a sure sign that you are not going from forward bend to backward bend soon enough.

All this has to occur with your normal resultant path and clubface and dynamic loft.



Hey Manzella critics, that's a another FREE ONE , just for you guys.

 

[Matt Bryda]

a sure sign that you are not going from forward bend to backward bend soon enough.

I got it until this part.

Would you explain this for a non critic?

Matt

 

[Brian Manzella]

I got it until this part.

Would you explain this for a non critic?

Matt

Sure.

Your are bent over your belt buckle at address, and over your left hip bone at the top without being bent over your belt buckle either nearly as much (NSA-type backswing), or not at all (NHA or baby fade backswing).

When you are halfway down or so, you are back to being move bent over your belt buckle, and are beginning to be bent over your right hip bone as well.

If you kept this over your belt buckle bend through impact, you'd really over hit down on it, and have your head running down the fairway.

You have to switch to backward and completely right-side bent at the finish, like the PGA TOUR LOGO, which is 1972 Johnny Miller, BTW.

If you don;t switch from MR. Fabersham to J Miller soon enough, you'll dig to China.

Unless you are a stone cold filpper.

 

[rcw]

Hey Brian

I like that thought of trying to get the club to exit the impat interval more vertical.

That is a good thought.

I was fooling around with that a little today actually.

I was trying to visualize the way geoff ogilvy or luke donalds clubs go into their follow thru.

Would that be a good way to think about it?

Like the club is re cocking more vertical and less around...

 

[Brian Manzella]

I like that thought of trying to get the club to exit the impat interval more vertical.

That is a good thought.

I was fooling around with that a little today actually.

I was trying to visualize the way geoff ogilvy or luke donalds clubs go into their follow thru.

Would that be a good way to think about it?

Like the club is re cocking more vertical and less around...

It doesn't have to "re-cock," just not exit low.

Think about it.

Just keep the same path and clubface and exit more up, and you'll pretty much HAVE TO have a higher VSP!

 

[mjstrong]

Getting the VSP close to the "static fit" lie angle of a particular golfer is very important in some instances.

A low one is a sure sign of the dreaded "swipe" hard low & left.

To raise your VSP, try to either go from FLAT to tumbled steeper from release point to impact, or just try getting the club to exit the impact interval more vertically.

You may find that all of this increases your angle of attack, a sure sign that you are not going from forward bend to backward bend soon enough.

All this has to occur with your normal resultant path and clubface and dynamic loft.

Hey Manzella critics, that's a another FREE ONE , just for you guys.

I think that this could end up being a big one...especially for fine-tuning our better players.