X-Box360 Controller & X-Axis sensitivity.

[sholo]

I play Tiger Woods 10 on the 360 but the controllers X-Axis is way too sensitive when using anything near 100% power.

Does anyone know of a way to lower the controller's sensitivity on the
X-Axis? Don't want to modify the controller too much since I like everything else but the left to right action on the stick needs more
toughness to it so I don't keep shanking the ball.

Anyone have any ideas for a low tech or high tech solution?

A online friend told me to just go buy a Gamestop controller. He claims
the sensitivity on their analog sticks is less then that on the official
controllers but I don't want to spend $25 on a controller only to find
out that it's no better then what I already have.

Any help or advice would be greatly appreciated.

[Kyo]

Uhm, I suppose you could stick a resistor on the middle pot lead.