What makes you believe that straightening the legs at the right time has no effect on clubhead speed. Can you explain that biomechanically?

What does "not necessarily" mean. Hitting the driver far is not all about clubhead speed. Launch conditions.....

Do guys that hit drivers far and high tend towards straighter or more bent legs at impact and beyond?

I would be really careful about using any Robert Baker beyond positive O factor at impact or beyond.

HB

I didn't say "right" time, I said "right" amount.

In other words, the left leg must straighten at the correct time during the downswing if a golfer has an "optimum" kinetic sequence. However, the left leg doesn't have to straighten in a hyper-straightened manner (that causes a significantly positive o factor). Some superb golfers prefer to allow to allow the straightened left leg to still have a few degrees of flexion at impact/early followthrough, which means that the degree of positive O factor will be slightly less, and the left pelvis will be less upslanted at impact. I know of no reason why those two small variations in the degree of left pelvis upslant at impact should affect clubhead speed at impact.

I know of no causal correlation between driver distance and the degree of upslanting of the left pelvis at impact.

A more upslanted left pelvis at impact may allow a golfer to more easily hit upwards with a driver. However, according to Bobby Clampettt in his book "The Impact Zone", a golfer should always strike the ball while the club is descending to its low point - even when using a driver. Long drive competitors do not follow BC's advice because they seek different ball launch conditions when using drivers with very small loft angles.

Jeff.

Always talking in circles. How did you get from Tiger and Jamie back to Clampett? Does Clampett drive far?

MFT thread? Outside of standard thinking. Links with guys that hit far. Learning about what the big boys do to get that little bit extra. Then, is it practical or advisable? Worth what you have to give up?

What do they do? Besides pure speed, what are the common attributes of guys that hit far?

HB

I do not think that Tiger Woods or Jamie Sadlowski use any special technique to drive the ball further than their competitors - other than an ability to perform the entire kinetic sequence much faster than their "average" competitor while remaining in balance.

I have studied Jamie Sadlowski's swing using my swing analyser program. I cannot identify any "new" biomechanical process at play. Can you?

Jeff.

So Jamie swings just like everyone else? He's just really fast? That's not very interesting. We have little to do with that....like being tall.

Never said these guys do something new.

i did some google and youtube and cant find anything about Venturi and Sullivan, any chance you could give us some links?

thanks!

Thanks for all the notes Bucket. Great stuff. I was sort of hoping for someone to set me straight on it not being in the book.

I really like that hammer thrower footage. Not straightening up would be so obviously wrong there.

OB

God's Givens
 

Great quote, Henny. Ranks with "fast runners and slow runners". I've got a new 'sound bite' for my lessons . . .

Thanks!

Jeff I like his pants and the green screen trick and all but only made it half way through "O FActor". Its hard to watch some of these things for me. I hardly ever read a Golf Digest anymore either. He made so many statements in the first half that I would disagree with that I had to turn it off. "Watch , as I speed my hips........." . Like he didnt swing harder with his arms......... so power is a zone 1 thing then?

"O Factor", the name is so derivative maybe and that is what put me off. "X FActor" , O Factor etc.

Factor this....Knowing of Hula Hula, pivot center, axis tilt etc how can you not disagree with his recommendation to tilt at address and set the head back in the stance as a normal procedure? This is a person recommending that you forsake centered balance, in the name of a what? A preset "O Factor" predicated on a misunderstanding of what it is that he is observing on tour at impact? "O FActor" address : Centered hips, but tilted by taking the head back into a wobbly off center position. You must see the implications to low point, balance, the necessity to slide into impact from there etc .............

This by the way is hardly new. I remember as a kid , copping Golf Digests recommendation to set the weight on the back foot at address to pre start the swing. There was a photo of Tom Wieskopf on the cover with his head set back and his shoulders tilted. His hips centered instead of his head. I hit a lot of hooks off of that stance.

Its 30 odd years on lets set the record straight. The uncompensated average every day swing has a pivot center between the feet.

OB

Axis Central
 

http://www.youtube.com/watch?v=IsT98...eature=related

:laughing9