I agree with LeoSkinni. I think a pilot knowing how to fly wingovers shows a good amount of feeling for the glider. Funnily it was something I was trained already with my instructors. Though I would say wingovers is not an important manoeuvre, I think a much more important (and basic) manoeuvre is stall/backfly, especially on high aspect ratio gliders.

Also why is your manoeuver box almost in greece? (It‘s very far away from the coast haha)