WGC Open Class

The open class at Uvalde is the most interesting in the modern
glass era, post 1966. There are 5 new designs racing, the oldest
being the EB29 which first flew in 2009. The others are all new this
year- Concordia, Quintus, Antares 23, and JS1C. All five are in the
top seven places after 7 days. All have won a day and the Antares
23 has won 3 days.

Can anyone explain the difference between the Quintus and
Antares wings? They apparently share quite a bit, but the Q has
polyhedral and different winglets.

Richard