Swingweight help on Ping G10 irons

[longfornothing]

Currently I have the AWT shafts that weigh 96g/standard length in my G10's. They swingweight to D0. I'm planning on re-shafting with DG that weigh 130gr/plus 1/2" length.Using the same grip, what will I expect the swingweight to end up at? My rookie estimate is D6.7? Right or wrong?

If right, what would be the best way to get it to D2? Add weight to the butt? How?

Also, would adding 4 grams (2 sw pts right?) of lead tape above the Custom Tuning Port as high up on the back of the clubhead as possible, lower the trajectory enough to notice?

Thanks for the help.

[Stacey_E]

Currently I have the AWT shafts that weigh 96g/standard length in my G10's. They swingweight to D0. I'm planning on re-shafting with DG that weigh 130gr/plus 1/2" length.Using the same grip, what will I expect the swingweight to end up at? My rookie estimate is D6.7? Right or wrong?

130-96 grams = a change of 34 grams

most sources quote 9 grams of shaft weight changes 1 SW point so: 34 / 9 = 3.77 or D3.77 If you don't want to shorten the clubs, then you would need to add grip weight or back weight to get to D2. The numbers I've seen claim 5 grams increase in grip would bring the club down 1 point. 5 x 1.77 = 8.85 grams should do. 4 grams of lead tape will do nothing to change trajectory. Some will tell you it will. You need 30 + grams to change center of gravity. 4 grams might change the ball flight, but only because it makes the golfer feel and thus swing the club differently. Good luck, and realize I'm no club builder, just a math nut.

[longfornothing]

We don't have "math nuts" down here! LOL. Thanks for the confirmation.

[Stacey_E]

Damn Damn Damn, I missed the 1/2" over that would make it D6.77. I totally flaked on that one. 3 more SWs for the 1/2" over.

[longfornothing]

Well neither one of us know what we are doing b/c I put the DGs300 in my Ping G10 irons last night and took them to check the SW this morning and was baffled. With the 52 gr grip, they balanced out at C8!!!!!! This was at standard length. At first I thought maybe the shafts were SL300's and not DGS300's, but I confirmed that. I guess when you think about it, it makes sense that the heavier shaft would decrease the SW. It all depends on the where the balance point is. Whatever, now I have to jam a bunch of lead tape on the head.