The design margins are far less than those indicated. More like 10-11 %.
Better not encourage breaking the limits.
By the way, while practically all sailplanes can withstand higher g loads than required (recent wings generally fail at very high loads), the same can't be said about flutter resistance.

On the other hand, a few models can be upgraded for increased flutter limits, probably by adding balancing masses and maybe improved control linkages.
Talk to the manufacturer to search into it.

Aldo Cernezzi




They're designed to 40% (?) above Vne and test flown to 20% (?) over.

Yes, exceeding the Vne printed in the manual makes you a test pilot. That's part and parcel of world record flying. Don't try it at home.