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Here's a sample of some drives on a recent session. Look at the spin numbers.....too low I know, I'm working on it but why are they the same, that's impossible...
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Spin looks great! It does seem impossible. You sir are an amazing ball striker to replicate those spin numbers. -
Spin axis not same. Now I have to go check mine to see if there are repeatsComment
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Those 2024 rpm, several in a row, does seem pretty unlikely. Hopefully just a one session aberration.Comment
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Thinking out loud.......... I dont know if I was aligning logos, but I usually do with driver. I have fairly strong led lighting above the golf mat, occasionally a shadow will blink out the laser for a moment.Comment
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SkyTrak_Seth what do you make of the table at the top? Hitting six shots in a row with the exact same spin would seem to be highly suspect. I can't imagine what the odds would be for that. Or one heck of a repeatable swing.Comment
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I've never seen anything like that. We don't have any sort of generic spin (or any other ball data) numbers that we populate in the event we can't read the ball. This does raise a flag for me though, so let me do some digging to see if that number in particular has been uploaded with any sort of higher frequency than other spin numbers. If that doesn't produce any results, then I'm afraid you are just a freak of nature and should join the tour immediately
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I’ll be out of town for a week but I’ll experiment when I get back....and review some past sessions. FWIW, the only thing consistent in my game is my inconsistency..Comment
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The backend team ran a report on all shots uploaded to date and there is nothing about 2024 that is alarming. It does have slightly more instances than 2023 or 2025, but you see that all throughout the entire range of spins...maybe just due to rounding anomalies.Comment
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I saw the same thing about a year ago but I didn't capture the data. I see spin of 2023 for total spin very frequently. It seems very odd that I hit this exact spin number as much as I do. The strange part when I looked at the saved data for all the shots that had the 2023 total spin, the back spin and side spin were all different.Last edited by CintiGolfer; 07-31-2019, 02:14 AM.Comment
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While I wasn't able to match a bunch in a row today, I was able to get two different instances where the total spin was identical on back to back shots. As you can see in the data, the back spin and side spin were different even though the total spin was the same.Comment
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I used to see 2024 rpm with my driver a lot for some reason.Comment
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This does appear to be a bug. I too see 2024 Total Spin very frequently, and it's never lower than that. I've posted some screenshots at https://golfsimulatorforum.com/forum...n-and-bs-ss-ts.
And if your actual Total Spin is lower than 2024, it would usually lead to more distance with driver - this could be at least part of the reason SkyTrak reads low distances with driver, especially for low-spin guys.- Ron at GunghoGolf.com - we specialize in TrackMan, FlightScope, Foresight, Uneekor, SkyTrak, Garmin, Bushnell, TGC, and E6 Connect. 512-861-4151 or email hello AT gunghogolf.com.Comment
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JackedUpSwing, I think it could be combination of ball speed and spin reads, especially for low-spin guys. Hey, as a high ball speed player, did you ever try moving the ball both away from the camera, and behind the dot, by 3-5 inches both ways? That would give the SkyTrak cameras a wider field of view to capture photo 1 and photo 2.
Under the assumption that the two photos are taken 5ms apart, a 165mph ball would travel 1.2 feet between photo 1 and 2, which is getting close to what I would imagine the field of view to be. Since ball speed should be the simplest measurement taken by SkyTrak (find the position of the ball in photos 1 and 2, measure the distance between the centers, do the math), and ball speed suddenly becoming low as it crosses the 150mph threshold, a field of view restriction might be what we're dealing with. -
I am very similar. I routinely see 160+ ball speed with trackman and gcq but rarely beat 155 on st. Interestingly my spin numbers are also quite high compared to trackman; I have only ever seen consistent low spin with a gcq. I tend to see low spin on the st when spin axis is heavily tilted... -
Yeah, the low distance issue was due to problems measuring high ball speeds. But it wasn't field of view, it was simply down to image analysis.
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Seth, do you actually see Total Spin numbers in your data? Because the SkyTrak database only stores Back Spin and Side Spin. TS appears to be a display-only value. And I've never seen TS less than 2024, but I see 2024 at least 25% of my driver shots.Originally posted by SkyTrak_Seth View Post- Ron at GunghoGolf.com - we specialize in TrackMan, FlightScope, Foresight, Uneekor, SkyTrak, Garmin, Bushnell, TGC, and E6 Connect. 512-861-4151 or email hello AT gunghogolf.com.Comment
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Yeah, we actually get total spin, spin axis, back spin, and side spin from the hardware on each shot. In the other thread, I mentioned that Rapsodo acknowledged that this is the lower limit of what they are able to measure for total spin. I'm trying to dig in to see if there is something we can do about it. Granted, that is crazy low, but good on all you guys for catching this.Comment
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Could the shot data "delay" be coming from the computation of back spin and side spin after observing the actual spin and its angle? -
We determined back spin and side spin to be the preferred majority, but we still put in the option to choose. I will work on getting both saved locally and into the cloud - can easily be retroactive. But certainly not the cause for shot delay - that is only due to image analysis. -
From some patents, blurry pictures of golf balls are digitized to identify and tag things that are moving on the ball. I suppose that could take a lot of computation and time. Then mathematical transforms are applied to the digitized images, and I'm guessing, given the applicable limits available to golf balls (spin rate high, 11,000, and low, 2000, angle between, guessing here , -35 degrees hook to +35 degrees banana [right handed], could be shortcut to drop out fairly accurate spin and angle in a heartbeat.
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