Is there any proof or even evidence that a real world golf swing models well in physics? I'm not baiting you, I simply don't know. Well, I do have a belief that physics models of the swing are woefully inadequate to the point of being useless or worse, but it's only a belief. I'm definitely up for having my eyes opened.
-Don M --- Dave Tutelman <[EMAIL PROTECTED]> wrote: > At 08:44 PM 8/14/2006, [EMAIL PROTECTED] wrote: > >I think back weighting is all about feel. > > I have to believe this is the case. That's > because there's nothing in physics that says > there will be a big difference in result, given > the same swing. I've run Max's SwingPerfect > program, which uses basic physics to simulate a > swing, and allows some pretty big variation in > club parameters. I can go from no butt weight at > all to 100g butt weight. The difference in > clubhead speed never exceeds a half MPH. There > can be up to a half-degree difference in wrist > angle as well, which should translate into angle > of attack. A half degree isn't much at all, but > it's more significant than the negligible difference > in clubhead speed. > > BTW, you'd have to do A LOT of robot testing to > be able to detect such small differences with any > statistical significance. > > What's my conclusion from this? That golfers > change their swing based on what the club feels > like. That's the only explanation consistent with > the facts that: > * Backweighting makes negligible > difference in performance given the same swing. > * Backweighting does make a difference > in performance for some golfers. > > I believe that's also consistent with what Tim > Hewitt has posted about backweighting. He says > (based on his substantial experience with Balance > Certified) that there is no known way to predict > from measurements what sort of backweighting > would be best for any given golfer. The only way > to determine it is by trial and error. > > >I havent tried it on anything other than a > >putter, but for me, 75 gms in the grip end of my > >putter (Rife 2 Bar, Mallet) provides great feel > > the extra weight seems to really stabilize my > >hands. Especially noticeable on short putts. > >I havent done a scientific before-after test, > >but the after test sure feels better and I feel > >more confident. A by-product worth noting the > >grip weight also allows me to use the heavier > >two bar weights and still maintain a reasonable > swingweight. > > Backweighting in putters is a different story. > While a full swing is all about wrist cock and > release, a good putter swing has no wrist > movement. So the mechanics of backweighting is > completely different. The Heavy Putter Company at > http://www.heavyputter.com/ (I think they're now > Boccieri Golf) has a very good grasp on how to > fit golfers for head weight and back weight on > their putters. Independent controlled testing has > proven that their approach works. > > BTW Ted, your use of backweight to offset a > heavier putter head is consistent with what they > do. But swingweight has nothing to do with it. I > don't think of swingweight as being a > particularly valuable measurement for putters. > > Cheers, > DaveT > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.0.405 / Virus Database: 268.10.10/418 - > Release Date: 8/14/2006 > > > >
