Hi, nice to hear from you.
The Sabre Skin when pumping helps to prevent interstitial fluid from collecting to form the dreaded “donut” effect that that is created during an aggressive pumping session.
Basically the Sabre Skin offers some additional girth support and if the cylinder is sized properly it will allow you to fill the cylinder to limit lateral expansion to “pull” more effectively when looking to make length gains.
This is something you would have to experiment with to gather more information from personal experience with respect to the dynamics of any particular set-up which may require multiple layers of Sabre Skin for example.