Re-gripping and extending irons

I've regripped irons before so I have no problems with that but I'm looking into entending the shafts at the same time. I'm 6ft 1in and wear a hole in the heel part of my glove from gripping right at the end of the club (my gloves are even marked from the red cap of the dual durometers grips!). I also know that Mizunos have 1/4 to 1/2 inch shorter shafts than normal so this may be a contributing factor.

Basically I'd like to know if it's as simple as epoxying extenders into the butt end of the shaft when I've removed the old grip, cutting them to size (I was thinking 3/4 inch) once the epoxy has dried and then regripping as normal? Do the materials that the extender is made from make any difference? If so, which is best: steel, aluminium or whatever?

Would this also have any impact on the flex of the shaft? I can't see how it could as mostly all I'm doing is moving the butt end away from my hands rather than moving my hands further up the shaft.

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Cleveland Launcher 460 - Aldila NV 65 x-stiff
Callaway Big Bertha 3W - Aldila NV 75 x-stiff
TaylorMade Rescue Dual TP (16°, 19°) stiff
Mizuno MP-32 2-PW Rifle Flighted 6.0
Titleist Vokey Wedges 52°, 56°, 60°
Scotty Cameron Circa 62 #3 35/330

Yes, it's as simple as it seems.

Yes, the flex will soften, however, you'll be hard pressed to notice.

Thanks Ben

Do you have any preference for the material of the extender?

I usually keep it the same - graphite for graphite, steel for steel.

Cheers mate

The main thing to keep in mind is that you need to prep the inside of the existing shaft to ensure a good epoxy bond.

A standard plumbers' prep brush will work, or some sandpaper wrapped around a pencil (or something larger if you have it).

Also, when you set the club to dry, set it on it's butt (head up). This helps ensure a good bond, and if the epoxy runs, it doesn't become a rattle in the head.