Question to eyeXO users about swingspeed / smash factor

[Patator100]

Hello

before switching from qed to eyeXO (or going for a more costly LM), I ve read wormsburner concerns about ss and smash factor + have seen all possible videos with eyexo.
On some videos (like garage golf), the smash factor is very high (>1.4 for a 7 iron), which is impossible for a “bad hitter” with his conforming callaway head.

has any of you faced the same issue / be able to compare your eyeXO club data to Trackman (impossible with gcquad because both units need a the sticker on the face to provide club data)?

As most of complaints/videos are prior to mid July, maybe an update has fixed this issue...

thanks

[pwade3]

Wormburner I may be wrong, but I think they have updated that issue. I am not seeing that smash issue, but I will go back and look at the data. I have a slower swing speed then others like Wormburner who has a higher swing speed and was having the issue. He also has a Quad now so maybe he can compare the two. I get about a 1.48 on a perfectly hit driver. If I get a heel shot it drops to 1.40 or below. I can’t get over the 1.48 so that looks pretty good. I will check my 7iron and see what it shows.

[Patator100]

Ok - thanks Phil for your answer here also - I didn’t you were also in this forum. It s amazing to me that nobody from uneekor has got involved in our échanges on their Facebook page...Oliver normally does and maybe Doug.

[Wormburner]

The EyeXO is very accurate. They have updated several times to fix issues like the swingspeed/ballspeed. Comparing to the quad the Eyexo is spot on. The only thing i notice between the two is the side spin varies between the two and for the moment I am leaning toward the EyeXo on being more accurate on side spin. I took GCquad out to range and sidespin was not matching shot I was hitting on range. I still have to learn more about quad and setup to make sure i am doing it correctly but EyeXo is worth the money.

[john5]

I’d also like to know this as all components have been purchased except LM hardware and I’m torn between GCQuad w/club or EyeXO. I’ve been looking for a nice comparo vid Or write-up to no avail. I like the $$savings and ceiling mount of the EyeXO over GCQuad but there is one must...it has to be accurate!

[Wormburner]

Both are great units! You will be happy with both on how they read. Quad can be indoors and outdoors which is a plus, Quad has better data on putter and also software abilities currently blow Uneekor out of the water. That being said Uneekor has the unique ability to show images at impact and with the swing optix cameras the machine is awesome. Uneekor is updating software almost weekly to catch up and I think they will. For the money Uneekor EYEXO is a beast. Cant go wrong with either unit IMO.

[bionicboogerboy]

john5

I have both the Quad and EyeXo. I noticed the Eye reading shots with my Quad stickers on it. When I get some time I’ll pay more attention and see if the readings are accurate. If they are good and I can run both sims and sim software simultaneously, I’ll shoot a comparison video.

[john5]

Hey guys thanks for chiming in, I appreciate the feedback your giving on the 2 units.

[pwade3]

Patator100 I checked out the smash with the 7 iron and have a example with Flightscope using a 8 iron. Couldn’t find were I hit a 7 iron. I will be honest, I don’t know my swing speeds for my irons all that well so I will let you decide if they are accurate.

[Patator100]

pwade3 smash factors seem pretty high compared to tour players. So, maybe swing speeds measured by the eyexo are too low
https://blog.trackmangolf.com/trackm...ge-tour-stats/
I have attached the average lgpa measures reported by Trackman.
it would be interesting to ask directly Uneekor.

[john5]

So I’m a little confused. Do these launch monitors, namely GCQuad and/or EyeXO actually measure club head speed which would be from only 1 of 2 ways. Either radar type hardware internals measuring club head at ball impact Or the camera locking onto the club head and measuring (a certain distance over period of time. Distance/Time)? Or is it otherwise totally calculated??

As far as tour pros smash factor. You got to think, their swings are fully optimized for spin, ball apex, land angle degree, etc. Smash factors with their higher lofted clubs do not necessarily have a target of 1.50 because of aforementioned stats. Meaning even for pros it’s impossible to have 1.50 smash factor with ideal spin, land angle etc. For instance, smash factor is not only increased with more club head speed. It’s more combination of club head speed, attack angle, and dynamic loft. So a tour pro 7 iron with a smash factor closer to 1.50 would produce a ball flight that would travel maybe 210 yards Vs. 172 with a land angle of 25 degrees Vs. 50 degrees both not ideal in a typical situation. For a tour pro to achieve 1.50 smash factor with 7 iron he would simply swing a little harder but more importantly, manipulate the club head to a lower dynamic loft at impact. That being said, in pwade3 examples the launch monitors could be spot on but his dynamic loft and attack angle may vary to produce 1.42 vs. the trackman tour average of 1.33??

[pwade3]

I believe that the Eye xo measures club head speed. I don’t actually know that but I have a contact at Uneekor that I will put that question to him. The reason I believe it is measured is I tested last night hitting normal shots to get a accurate range of club speed and ball speed on good shots. Then I purposely hit shots off the toe and the ball speed changed quite a bit but the club head speed did not. Eye xo can actually see that its hit off center and I guess could possible calculate ball speed, but I don’t believe it is.
As for smash factor, Trackman website has a good write up on this. I don’t think my examples at out of a possible range considered acceptable. I have no idea if its accurate but all this data will come with an expected degree of allowable tolerance. I think the smash factor might be a little hight with the Eye xo but I don’t think a lot. Trackman shows a average factor for a 5 hdcp (I”m a 5.1 index) of 1.45. I have been able to achieve 1.48 with the driver. Most of the time it is around 1.42 to 1.45. The 1.48 was only once and it was a perfect strike.

[Patator100]

Phil. Thanks for your comments. I have more questions about smash factor with your 8 iron rather with your driver.
I m not a swing expert but is a 1.40+ smash factor really possible with a 8 iron (with a conventional head - around 39deg loft) ?

[Wormburner]

I do not know the science behind this stuff and what is capable or not with each system. I struggled with the Smash at first with the EYEXO but I had to realize that this company like others believe in their numbers and calculations just like Trackman does their own numbers. The Eyexo reads club head speed only when the reflective stickers are on the club so I imagine its reading the club in distance traveled. Ball and club data are read independently with EYEXO. I believe trackman reads swing speed at full compression of ball and other units read it in different places. I assume reading club speed and ball speed in different spots could affect Smash number. Smash factor will always be Ball speed/club speed and if these numbers are read at different times then we get different outcomes. The smash factor you are talking about is unique to Trackman and how they calculate their numbers. Again, I am assuming here but I dont think you can use trackmans averages and compare to Quads averages or Uneekor. Trackman has been the benchmark for sometime but now others are catching up and providing excellent data. I have a GCquad and EYEXO, both read Smash similarly. These are camera systems which may or may not be as efficient in reading speed data. I do know Quad has been making a run on tour and the smash factor is higher than trackman for sure. Which is right? I have no idea! It is fun to talk about though, again this is based on what little info I know

[pwade3]

Yes, well said. I agree.

[Patator100]

Thanks for your comments about gcquad and uneekor. The guy in charge of golfsimulatorguide.net will run an in-depth comparaison in the two next weeks. I will post his results here when ready.

[Wormburner]

Good to hear! I will look forward to the comparison!