The variometer pointer shows what a Total Energy variometer should show at the gliders best glide speed. A Super-Netto variometer is sometimes known as a relative variometer. Most pilots prefer a Super-Netto variometer because it gives the glider's actual climb rate in a thermal while still showing the climb rate obtainable when slowing from cruising to thermalling speed.
Note: the DDV averager is total-energy compensated. The DDV audio is always configured as a Super-Netto variometer