I just search it.

I fnd this -

from - http://www.llila.com/common-questions.php

"If only one segment of your limb is lengthened (the leg or thigh), you can potentially gain up to 4 inches in height. Most people are able to gain 3 inches without much difficulty or complications. With the combination of lengthening both thighs and legs, you can potentially achieve up to 7 inches in length."

Is it true ?

My goal is 5 inch(12cm), combination of lengthening both thighs and legs. i would b still happy if i gt 4 inch(10 cm)

Thanks.