Question:
… did a lot of work with generalized stochastic petri nets.
Neat. I’m a Monte Carlo sort of fellow. Both in my simulatin’ and my in my golfin’. I take it you like links golf and the Open Championship (aka British Open), being stochastic and all….
I feel about golf (especially links golf) the same way Boltzmann felt about the logarithmic spiral. -TSG – Hide quoted text — Show quoted text – — — — David "Thor" Collard — http://ttsoft.com/thor
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Cool handle… did a lot of work with generalized stochastic petri nets. Often thought this would be great to analyse speed of play. I take it you like links golf and the Open Championship (aka British Open), being stochastic and all…. — — — David "Thor" Collard — http://ttsoft.com/thor
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Cool handle… did a lot of work with generalized stochastic petri nets. Often thought this would be great to analyse speed of play. I take it you like links golf and the Open Championship (aka British Open), being stochastic and all…. —
He probabilisticly does. "Someone likes every shot" bk RSG FAQ: at http://ttsoft.com/thor/rsggolf.html
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You really can’t compare two different shafts with different flexes. As little as 20-30 gram difference in shaft weight can produce a noticeably lower trajectory. In addition, for whatever reason, I think different shafts induce people to strike the ball differently, at least before they have become familiar with the club. You may well notice some difference in trajectory between shafts, even if they have the same weight, but it’s not a major factor. The notion that shaft selection (in particular, flex) has an effect that dominates all other aspects of the club is ridiculous. Clubhead design is by far the most important. First, find a clubhead that gives you a desired overall trajectory and impact feel. Demo the club with the same weight shaft and overall length that you plan to play with. Pay careful attention to how much backspin you get from the club, because a loft change will affect launch angle more than backspin. If the clubhead will not deliver a straight ball flight (or a draw or fade as you prefer) with a comfortable setup, or if shots have excessive or too little backspin, choose a different clubhead. Unless, of course, you are determined to get this particular clubhead and will work on your setup and swing until you can manage to hit it. (Seems like a waste of time to me.) Second, select the loft that gives you the desired launch angle. Third, select a shaft with a weight similar to that in your demo club. Choose the flex according to swing speed guidelines, or ignore the guidelines and select the flex you feel most comfortable with. -joseph – Hide quoted text — Show quoted text – The shaft in the driver will affect the feel of the club significantly but will have no effect or very little effect on the trajectory. I didn’t know that. It’s not really true that the shaft has no effect. I think the point he was trying to make was that the loft and design of the club usually make more difference than the shaft flex. Also, it depends on how you swing. I believe the harder you swing, the more difference you’ll see between a regular and stiff flex. I, for example, notice a definite decrease in trajectory when I use an X-Stiff shaft. There is not much between regular and stiff for me, but for harder hitters there might be.
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The shaft in the driver will affect the feel of the club significantly but will have no effect or very little effect on the trajectory. I didn’t know that.
It’s not really true that the shaft has no effect. I think the point he was trying to make was that the loft and design of the club usually make more difference than the shaft flex. Also, it depends on how you swing. I believe the harder you swing, the more difference you’ll see between a regular and stiff flex. I, for example, notice a definite decrease in trajectory when I use an X-Stiff shaft. There is not much between regular and stiff for me, but for harder hitters there might be.
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The shaft in the driver will affect the feel of the club significantly but will have no effect or very little effect on the trajectory.
I didn’t know that. When I was fitted for my 975D, my golf teacher had me hit several 8.5* drivers, each with a different shaft, to determine which had the proper ….IIRC sounded like kick point….to yield the trajectory (I wanted more roll) we were looking for. Finally low, the EI-70 too high). I hit about 30 drives with each shaft and the differences in trajectory were consistant. Don’t understand the physics behind it all but the 975D/Grafalloy combo makes the ball goes as far as I want it to (and low enough for windy days where a high trajectory drive gets eaten in the sky). As an aside, my new 9.5* Snake Eyes CMF Ti on a Pre-Pured Grafalloy 35S carry but very little roll; a handy feature for many of the courses I play (when it’s not too windy). – TSG
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I am a 18 handicap golfer and am wondering what loft driver I should use. Is it better to use an 8 1/2 loft or would a 10 1/2 loft be better. I can hit and 8 1/2 good in the past with mostly good line drives. Would a 9 1/2 highreeer degree loft make a difference.
Whichever one you hit longer and straighter. There’s no way for us to know. Ask a pro to watch you swing and fit you for a driver. To answer your question, the 9.5* driver would make 1 degree difference.
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It must be emphasized that different *makes* of driver will typically launch the ball at much different angles and often with considerably different backspin, even if they all have the same "degree" stamped on them. For each model of driver you are interested in, you *must* try an example of the club at a driving range to determine the loft that is right for you. The shaft in the driver will affect the feel of the club significantly but will have no effect or very little effect on the trajectory. So if you demo an "A" flex or "S" flex 9.5 degree driver and it is just a tad too low for you, the right loft will be higher regardless of the shaft flex you ultimately prefer. What’s important in terms of trajectory, from most to least: (1) Make of clubhead <– weight distribution and other factors dominate all other considerations for drivers (2) Loft of clubhead <– within the same model and shaft weight only (3) Golf ball <– lower spin balls typically launch higher (4) Shaft/overall weight <– heavier club = lower swing speed = less backspin = lower trajectory, typically (5) Shaft flex <– very consistent ball strikers may find observable differences in trajectory from one flex to another; most golfers will not For some driver clubheads there *is* no correct loft, because some clubheads will produce too much or too little backspin for some golfers, regardless of loft. In this case choose a different model of driver. -joseph – Hide quoted text — Show quoted text – I am a 18 handicap golfer and am wondering what loft driver I should use. Is it better to use an 8 1/2 loft or would a 10 1/2 loft be better. I can hit and 8 1/2 good in the past with mostly good line drives. Would a 9 1/2 highreeer degree loft make a difference. Whichever one you hit longer and straighter. There’s no way for us to know. Ask a pro to watch you swing and fit you for a driver. To answer your question, the 9.5* driver would make 1 degree difference.
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Thank you for the interesting links. I never saw a chart of loft & swing speed for optimum distance. Yet distance is only one aspect. I played a round of golf recently (with the course open) with 2 balls. Using one I teed off with a driver (from a standard Ram Investor set – don’t know the loft – probably 10-11