http://www.moyes.com.au/articles/articles-of-interest/343-the-rx-effect

The RX Technora® has the best handling I have ever experienced - and I have been
flying these Litespeeds for 15 years now. The reduction in high siding brings a
new quality of riding pleasure in flight! This means it's easier to stay in the
thermal's core, pushing the bar out and firing the turbo booster for a better
climb. And all this with up to one third of VG and less motoric activity. The
weaker the climb or the wider the thermal you still experience less bank and the
more VG can be used from one half to three quarters of the rope. This keeps the
joy with nine hours XC-flying. Or to win Task 1 and 2 at the Ludesch Open right
away.

Here the RX was very handy turning from left to right but even more noticeable
was the VG setting I could use: three quarters of rope without much high siding
in laminar soaring conditions. Therefore the best glide increased in combination
with a better climb rate the more VG you can use.