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Nullus Anxietas
Picture of ensigmatic
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quote:
Originally posted by jhe888:
Is this also caused by the ball sliding up the club face of the more lofted clubs on impact?

You mean like wedges? I should think that would be negligible to non-existent if the club has good grooves and the face is clean.

If the club face is not grabbing the ball well, spin rate will be adversely affected.

You can see the results of a really grippy wedge on a flop shot. Ball hits the green and stops like it has brakes. I love doing those Smile (Was actually one of the few things I did fairly consistently well, last season.)




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Posts: 20504 | Location: S.E. Michigan | Registered: January 06, 2008Reply With QuoteReport This Post
Member
posted Hide Post
quote:
Originally posted by ensigmatic:
quote:
Originally posted by jhe888:
Is this also caused by the ball sliding up the club face of the more lofted clubs on impact?

You mean like wedges? I should think that would be negligible to non-existent if the club has good grooves and the face is clean.

If the club face is not grabbing the ball well, spin rate will be adversely affected.

For a clean-faced short iron or wedge with respectable grooves, the ball doesn't slide up the face. Instead, the ball compresses to some extent and the club's grooves make brief, but positive contact with the ball. I have 20+ year old TaylorMade Firesole irons. With my 7 iron and shorter clubs, with solid hits, I see definite evidence of the contact on the club face -- the grooves tear into ball covers, leaving small shavings in the grooves. These shavings marks are always round -- they never climb up the club face, nor make a vertical ellipse. I have also tested this with Strike Spray -- a powder spray that clearly shows impact locations on the face.

I haven't found websites which go into to the technical details or physics of why maximum obtainable smash factors are lower with higher-lofted clubs. I do suspect some of the club's forward energy is transferred into spin energy, rather than ball speed. But I also wonder if launch monitors try to measure ball speed on the ground -- essentially the horizontal component -- rather than the ball's absolute launch speed on whatever upward angle that occurs. Regardless of the physics behind smash factor calculations, I know and accept that drivers, 6-irons, and wedges are built for different purposes.

****
Both work and personal challenges have limited my time for chasing the little white ball. Once a week, I've tried to hit a small bucket of balls at the nearby municipal course during lunch. I always bring my Garmin G80 to monitor club speeds & smash factors. I bring my chart from the second page of this thread to confirm feel vs reality. I bring Strike Spray for when I'm struggling to hit with the center of the club face.

My ball striking consistency is slowly improving. My 18-hole scores are beginning to drop back into the 80's. My drives are becoming more consistent and more accurate. But on the flipside, I'm still making stupid mistakes. Good thing I have a day job.

So....is the $400 Garmin G-80 launch monitor & course GPS improving my game? I think so.
 
Posts: 6951 | Location: Colorado | Registered: January 26, 2008Reply With QuoteReport This Post
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quote:
Originally posted by ChicagoSigMan:
This new entry from Garmin looks super-interesting:

Garmin Approach R10

Yep, I noticed it, and so has a somewhat impulsive golfer at our office. He wants to buy it today.

If the R10 does what it purports, then the $2k Mevo+ and the $2k Skytrack have uber serious competition. I feel there needs to be some independent testing against a Trackman and/or GCQuad. Web rumors hint that the R10's radar isn't sophisticated enough to actually track the ball rotation -- rather, the metrics are based on algorithms. Time and testing will tell.

But if the $600 R10 truly measures all those metrics accurately, I'm all over it like white on rice.
 
Posts: 6951 | Location: Colorado | Registered: January 26, 2008Reply With QuoteReport This Post
quarter MOA visionary
Picture of smschulz
posted Hide Post
quote:
Originally posted by fritz:
quote:
Originally posted by ChicagoSigMan:
This new entry from Garmin looks super-interesting:

Garmin Approach R10

Yep, I noticed it, and so has a somewhat impulsive golfer at our office. He wants to buy it today.

If the R10 does what it purports, then the $2k Mevo+ and the $2k Skytrack have uber serious competition. I feel there needs to be some independent testing against a Trackman and/or GCQuad. Web rumors hint that the R10's radar isn't sophisticated enough to actually track the ball rotation -- rather, the metrics are based on algorithms. Time and testing will tell.

But if the $600 R10 truly measures all those metrics accurately, I'm all over it like white on rice.


Me too.
I am interested primarily on accuracy and more metrics.
The simulation stuff is no real concern of mine as I don't have anywhere to set it up.
 
Posts: 19237 | Location: Houston, TX | Registered: June 11, 2006Reply With QuoteReport This Post
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