Shaft Recommendation for a friend - Short Female, Good Club head speed

[mikehutchins]

I have a friend I would like to make a club for.  I have a r11s 10.5 head laying around I want to utilize.

She is about 5' - 5'2" and until recently was using a Men's stiff RBZ driver.  She probably chokes down about 3.5".  It  looks pretty funny.

She had another driver laying around that she had me cut down.  This was at least a Regular flex driver.  I took about 3.25" off it for her.

As I stated before, I would like to setup the r11s.  She hits a driver really well and I think her ideal flex would be in the range of a Regular flex to a stiffer senior flex shaft.

What do you folks recommend?  Assuming the other driver was 46" and is now 42.75".  What would be the best way to achieve the flex I am looking for?  Cutting that much off the top must have some affect on the stiffness of the shaft.  Is there a combination of trimming the bottom and top I should do with a certain stiffness shaft?  Really not sure what to do here.  I have thrown many parts together in the past, but really at a loss what to do here. 

Thanks for your input.

Edited June 28, 2018 by mikehutchins
update topic

[Shindig]

Well, if she grips down 3.5", maybe 3" or 3.5" under her previous one is a good starting point.  There's a little worry she might be like AK and even with a shorter club, she'd still be inclined to grip down.  However, this affects swing weight.

Short doesn't matter too much:  most shafts can be cut.  The end you cut from affects the flex, if I remember correctly (it has been years since I assembled a club).  IIRC, cutting from one end won't make a significant effect on flex, but when I did these things it was like cutting half an inch off.

Do you know her clubhead speed with a driver?  Alternately, do you know her typical driver distance (especially if you know the carry distance)?  If you don't, is there a way you could find this out, such as by her going to a golf shop and trying a demo club in a launch bay?

Lastly, let me page @WUTiger, our resident expert on these sort of matters. 

[GOATee]

Your friend should use a Mini-driver.  Those things come shorter (42.5 inch?) in stock form properly weighted.

Cutting a driver 3 plus inches loses more than 18 swingweights (!!!).

[WUTiger]

On 6/29/2018 at 12:00 PM, GOATee said:

Your friend should use a Mini-driver.  Those things come shorter (42.5 inch?) in stock form properly weighted. ...

Also the mini-driver would likely have a 12* or higher loft. She's not very tall, and could use the loft to make up for leverage deficit of her height.

My wife is even shorter, so I hope your gal gets the club she needs!

(Note: I am on hiatus, and only check in about once a month.)