I have read and herd of it also But i tried it just last week it helped rehydrate the cutting BUT the end started to rot and i lost the cutting..... You know some people have good luck with different methods. It is not the normal or most used way of doing it but it works for you then thats great. It is not one i would recommend due to my failures but it is amazing how meny different people are trying different ways of rooting. For the most part i have only had luck with letting the cutting callous and rooting in soil with out much or any water. I guess im old fashioned. I tend to stick to what i know especially if i am spending money on the cuttings.
there is no 100% true way to root. i would love to hear how this one fairs. Please let us know and pics are great!!