LynnBlakeGolf Forums - View Single Post - Homer assumed Separation to be at Low Point but what if it isnt? Thread: Homer assumed Separation to be at Low Point but what if it isnt? View Single Post #5 09-07-2010, 11:02 PM 3Putt Member Join Date: Jan 2008 Posts: 44 Originally Posted by BerntR Draw. If the club head closes and the impact point doesn't move from contact to separation, the ball will "close" too. It will rotate the same way as the club face did during impact. And there you have the draw. I can picture what you mean but, picking some numbers from the top of my head, if impact interval is 0.1 sec and the clubhead closes 3 deg in that interval, then the clubface/ball is rotating at 5 rpm. Is that small rotation enough to cause a Venturi/Magnus effect to cause a draw? Even if I am off by an order of magnitude and impact interval is 0.01 sec, then rpm is 50. Same question. I would think that hundreds or even thousands of RPMs would be needed to cause the ball to curve. I believe that the line of compression, relative to the vertical centre line of the ball is what will determine the amount or absence of curve. 3Putt View Public Profile Send a private message to 3Putt Find all posts by 3Putt