Re: ShopTalk: MOI Matching

[Alan Brooks]

Hi Mark, what formula are you using?  There are some approximations that have floated around that can give errors greater than the differences between SW matched and MOI matched clubs in that narrow a range of clubs.  Keep in mind that the swingweight differences in an MOI matched set of four adjacent clubs is only about 1.5 SW points.

Alan Brooks


At 12:54 PM 4/17/2005 -0400, you wrote:

Hi everybody,

I'm wanting to MOI match a set of irons, 6, 7, 8 & 9. 

Using a spreadsheet I created with a formula for MOI that was circulating recently, I came up the the following headweights to match the the rest to the 8 iron at D-2.

6 iron- 268 gms
7 iron- 276 gms
8 iron- 284 gms
9 iron- 293 gms

Using Wishon 991 heads, weights of 259gm, 266, 273 & 280.,
Interflex graphite shafts, cut shafts weights of 78 gms.
Wishon reg grips, weight 50 grams.
Standard lenghths, 37.5", 37", 36.5" & 36".

I sure would appreciate anyone with their own calculator to double check my figures.

Thanks,

Mark Thompson