Club Head Speed-GC2

[drcabral]

How accurate is the club head speed data for GC2 when listed in TGC? Anyone with HMT getting similar numbers as that calculated by TGC?

[mthunt]

It's not terrible. I use the HMT all the time. It assumes a certain smash factor.

[FaultyClubs]

What are you wanting club head speed for? tgc assumes a certain smash factor which may or may not match your hit so it doesn't really tell you anything. I can't think of anything useful one could do with the tgc value.

Also, you probably already know but just in case you don't, one doesn't need a $6500 HMT to measure CHS. Any decent swing radar will do that for about $50. I have a Yupiteru ball and club radar that works great for measuring both.

[htdumps]

https://www.amazon.com/YUPITERU-Trai.../dp/B00T455FVG This one?

[ShootingLow]

Agreed FautlyClubs, but HMT is not just for CHS. Mthunt, what do you think of the additional readings - path, loft, lie, AOA, impact, etc?

[mthunt]

Agreed FautlyClubs, but HMT is not just for CHS. Mthunt, what do you think of the additional readings - path, loft, lie, AOA, impact, etc?

IMO the HMT is amazing. It sees the face. Trackman doesn't.

[mystic]

what if you had the GC2/HMT with an XiTour? I wonder how that would work....

[mthunt]

what if you had the GC2/HMT with an XiTour? I wonder how that would work....

My coach has the GC2 with HMT and an XiTour running at the same time in his room but he got everything for free. It's overkill. The Xi is not as accurate indoors.

[mystic]

Nothing is ever free.

[Bnorman58]

Club head speed calculation on gc2 assumes 1.45 smash factor. That is pretty much sweet spot for a driver and typically drops a bit through the bag. I believe from reading a link the average pga player is 1.48 on a driver. So, your swing speed could very well be reported as lower on not well struck balls.

[FaultyClubs]

The GC2 doesn't calculate or display CHS.

The average PGA smash factor for driver is 1.49. For LPGA it's 1.47. For both it drops down to 1.23 depending on club.

For amaters the smash factor could be anything. Even on the same club. We usually have a lot of variation in our hits.

A $100 ball/club swing speed analyzer can measure everything and is a good investment for anyone working on swing speed.

Just looking at ball speed is tricky when working on CHS. You can easily make a swing change that results in improved CHS but because of a lower smash factor the ball speed goes down so you reject that change as an improvement.

Often improving our smash factor makes more difference in distance than anything else we can do.

[Bnorman58]

The ones I have used at golfsmith do indeed display club head speed in the statistics you can review. It is a flat 1.45 based off ball speed. Not actual club head speed but it does display one. That's all I was saying.

[Bnorman58]

The software if one were to buy one with the gc2 I should say.

[FaultyClubs]

OK, gotcha! TGC does something similar.

[Agent 87]

I've just purchased a yupiteru device. The seller claims it measures both CHS and BS. I'm wondering if it actually measures or somehow calculates one based on something other than measurement.

[Solstice72]

Hard to follow thread, some differing takes above . To summarize Smash factor on TGC can be a decent guess or atrocious and fake? Asking cause I banged 50 Sw shots on rewind yesterday and concluded SF seemed useless.
But stupidly, now that I read this, I started to zone in club head speed yesterday eating it up. It seemed to be true I'd say, at least relative differentials.
But if SF is fairly bogus, then chs which it's based on is a TGC /GC2 guess too right? Is that what the thread just said above??

[Solstice72]

Sorry, I was follwing club path closely too yesterday. That's fairly reliable in TGC right?