ReAction Gel pen for shaking hands?

I picked up a pair of pens for my mom when I was in town the other day. She has Kathrine Hepburn Syndrome, so sometimes when she tries write her hand shakes. I found a set of gel pens by Bic called ReAction Gel.

The pens have what Bic calls D-Flection technology for comfortable writing. The way it seems to work is to let the pen tip use some sort of shock absorbing spring system to let it flex as you write. I am hoping that it will make it smoother for her to write when her hand begins to shake. She was having good luck with the gel pens that I had been buying, so I got her some of them, now I am hoping this ReAction Gel pen will be even better for her to try writing with.