TGC Clubhead Data

[Noobie]

Do you guys put any stock TGC's clubhead data (e.g., path, club face angle) even though GC2 does not measure clubhead data? I'm wondering if it's generally correct even if the specific numbers (angles) are wrong.

[TaoGof]

I am now having an issue with my ProTee Interface license. I will post the comparison when the license issue have been corrected. Please wait.

[ProTee United]

The minimum data TGC needs is ball data (ball speed, launch angle, ball path, side spin & back spin). TGC also accepts club head data. If the club head data is not measured and send by the hardware manufacturer, TGC will guestimate it based on a VERY simple set of formulas.

We can confirm that this is not accurate. So if your device does not measure any club head data please do not try to learn from the guessed club head data TGC is presenting you .

Club head data guestimation is something we will try to improve in the future. If anyone has some smart formulas to calculate these more accuratly, please start a new thread in TGC and let us know

[TaoGof]

Here we are, as I promised.

[mthunt]

Wow. Is that ever off. Is it always like that?

[ProTee United]

Of course.

You can not compare a simple calculation where it says ball path = club path to a $6,000 camera measurement device.

More reasons to buy an HMT.

On the other end, if we could reverse engineer club head data EXACTLY from ball flight data, then there would be no need to buy an HMT...

[JV17]

Yes... Have a friend with HMT and this is always way off. I wouldn't expect it to be close at all. 20 years from now they'll have a close formula to back into the club data... Too early.

[Bubba22]

Estimating club data from ball data is difficult because there are many options of face angle to path to get any measured spin. Can someone explain to me how a ball path of 0.6 right can happen with a closed club face 4.1 and inside out path of 5.8? Is that within the ball flight rules?

[fhann]

I have to assume that the closed clubface of 4.1 is relative to the clubhead's path and not to the target line. Also, is this club an iron or a driver/fairway wood that has roll built into the face?. If it has roll, what is the radius of the roll? Where on the face is the contact point of the ball? Could the contact point be between the centreline of the face and the hosel? If so, then 0.6 degrees is certainly easily achievable for an initial horizontal launch angle. Here are some very useful URL's that can help with understanding what may seem as contradictory clubhead and swing path data outputs as compared to measured/observed ball flight.

http://www.andrewricegolf.com/andrew...s-strike-point

http://www.andrewricegolf.com/andrew...es-the-teacher

http://www.andrewricegolf.com/andrew.../spin-rate-and

[TaoGof]

It was 7th Iron. And I think we need to take lie angle into account as well.

[fhann]

Yes, one needs to take lie angle at impact into account especially with higher lofted clubs. Higher lofted clubs that are not in a good position will affect the initial horizontal launch direction more than lesser lofted clubs. Clubs that are too upright for a persons swing will start the ball more to the pull side of the target. Clubs that are too flat for a persons swing will result in vertical launch angle that will have a bias to the push side of the target line.

[mthunt]

I did some testing today. It is not accurate at all. If you hit a straight push, straight shot or straight pull, it is accurate in path and face angle. If you put spin on the ball, the calculations are way off. Very strange. Club head speed isn't too bad.

[mthunt]

Has there been anything worked on to get the HMT data on the shot analysis screen in TGC? I'd like to get the HMT but I want to use it with tgc.

[JV17]

Same here... I'd like to get the HMT, but I want to use it with TGC. ProTee United, will this ever happen?