New Driver Ordered

[ainley87simon]

Ordered a new golf driver today, after recently being fitted for it. Currently I play with a Callaway FT9 with Adilla NV 65g stiff shaft in it. Today I ordered a Ping i25 with a stiff shaft. What lovely club, nicely weighted and feel stupidly fast off the club face, even my bad hits were getting out. My pro talked me through some of stats that flightscope was spitting out for me, I didn't have much time to talk in detail about it with him, so maybe you guys on here could me a second opinion?

I have a smash factor of 1.47 - apparently the optimal smash factor is 1.50 and my pro reckoned that point three, could be found from using a ball suited to my swing speed (he was not up selling told me to go away and research it, and then he stocked the ball great, if not buy it off the net), and also I could find the extra .3 from hitting it perfectly out of the sweet spot? I find it hard to believe that ball can make much difference?

My swing speed is averaged out at 106.4mph with a ball speed of 156.2mph, and a dynamic loft of 13 degrees. He suggest that if I could increase this too 15 degrees, I could really get my drives "out there" like I said I didn't have time to go through swing changes to achieve does anyone have any advice?

The best stat I got though was with the i25 my sideways dispersion what tighter and I was carrying the ball 252 on my best drives, compared to 232 with my old callaway (that also had looser dispersion).

 

[Alex1975]

Max smash is 1.54 I think... I had a couple of 1.52s when last on Trackman, they said they had only ever seen one 1.54.

Smash is swing speed divided by ball speed so its about quality of strike.

 

[Hacker Khan]

I thought the realistic maximum based on the restrictions manufacturers have put on them when making the equipment was 1.5?

 

[Alex1975]

I thought the realistic maximum based on the restrictions manufacturers have put on them when making the equipment was 1.5?

Me too.... I was corrected when I questioned my 1.52s... Happy to be educated by I have data with 1.52 on it.

 

[Foxholer]

Max smash is 1.54 I think... I had a couple of 1.52s when last on Trackman, they said they had only ever seen one 1.54.

Smash is swing speed divided by ball speed so its about quality of strike.

According to Trackman, the max practical SF - at sea level, normal temps and conforming (and usable) head and balls is 1.494. See their Newsletter3 on the subject.

It is possible to frig settings to give higher values though, which is why you should always take your existing Driver to 'calibrate' any session.

 

[pbrown7582]

Max smash is 1.54 I think... I had a couple of 1.52s when last on Trackman, they said they had only ever seen one 1.54.

Smash is swing speed divided by ball speed so its about quality of strike.

AG?

 

[Alex1975]

AG?

LOL no a Trackman at Golf Principles...

 

[Alex1975]

 

[Foxholer]

From Trackman's Newsletter3 as mentioned above...

Even though you may impact the ball dead-center on the club face,
so the ball departs on a line that goes directly through the Center
of Gravity (CoG) of the club head, there are 3 more factors that
determine the maximum obtainable smash factor:
1) coefficient of restitution between club and ball (COR),
2) the SPIN LOFT – the angle between club face orientation and
club head direction (see TrackManâ„¢ newsletter #1 and #2), and
3) the mass ratio between ball weight and club head weight.
The equation below shows the maximum obtainable smash factor
assuming a dead-center hit:

The equation below shows the maximum obtainable smash factor
assuming a dead-center hit:

Smash Factor = (1 + COR) * (cos(Spin Loft)/(1 + Ball Mass/Head Mass)

For the coefficient of restitution, USGA and The R&A have limited
golf clubs and balls to a maximum COR of 0.83.
While the spin loft could theoretically be 0 deg, it is impractical
since this would mean something like a 0 deg lofted driver with a
zero flex shaft producing 0 rpm of spin! The lowest realistic spin loft
for a driver is around 8 deg.
As for the ball, the maximum allowed mass is 45.93 g, with no lower
limit. However, it turns out that almost all golf balls have a mass
above 45 g since the heavier weight makes the ball slow down less
during flight (due to air resistance). For the club head mass, there
are small variations among drivers. They typically range from 197
to 201 g, with tour pros using 202-207 g. The heaviest driver head
I have heard about is 212 g.
By inserting realistic numbers in the equation above for maximizing
the smash factor (COR 0.83, SPIN LOFT 8 deg, mass ratio 45/212),
the highest realistic smash factor is 1.494.

As there is no reference to any device, I'd suggest there might have been some tweaking to get those (Flightscope?) numbers!

 

[njc1973]

I got the Same driver 6 months ago it is much straighter on miss hits and longer into the wind than my r1 that I had previously allegedly it's because it has a low spin head.

 

[didsbury_duffer]

I think you've hit upon a cure for insomnia !!

 

[HomerJSimpson]

Whatever the numbers and confusion about smash factor I hope it works out for you

 

[Hendy]

Some good numbers there. Tho looking at your HC in your Sig. I would forget the driving and get the short game sorted maybe a few lessons with the pro.

 

[ainley87simon]

Had a block of 5 lessons already mostly spent getting rid of weak fade by getting rid of poor technique. Short game is main focus in winter, ready to start going low at the start of the season. Pro tells me there is 10 hadi capper in me ( probably tells all his students that)

 

[Smiffy]

Ordered a new golf driver today, I ordered a Ping i25 with a stiff shaft. What lovely club

A nice set of "as new" i25 irons would sit perfectly next to that in the bag.

 

[HomerJSimpson]

Had a block of 5 lessons already mostly spent getting rid of weak fade by getting rid of poor technique. Short game is main focus in winter, ready to start going low at the start of the season. Pro tells me there is 10 hadi capper in me ( probably tells all his students that)

Mine says I have single figures in me so I wouldn't believe a word they say!