From the WGC competition results, I would rather draw the conclusion that the good pilots chose to fly JS3 or Ventus 3 rather than the ASG29. I would not conclude that one model has a clear advantage over the other. In previous competitions, pilots of Ventus 3 and ASG29 achieved comparable results. JS3 pilots did not always do so well in this years competition season over here in Germany.

You need to measure the performance of the gliders in similar conditions in order to compare them.