The Megaphone Effect was first recognized during the development of the Tradition series as an increased sensitivity in the grip do to the integral nature of the blank and grip.  During the development of the Puls-R a similar vibration transfer was realized in the grip, however in this instance the vibrations travelling down the blank reverse direction at the internal point of contact inside the grip allowing them to flow forward through the grip. We call this Reverse Vibration Transfer or RVT for short. In either, case just like the shape of a megaphone enhances sound the shape of the grip on the Puls-R, Tradition and now our STARGATE series enhances the vibrations emanating from the blank.