So, a question: can anybody sailplane-knowledgeable be more specific about exactly which sailplane(s) should be considered?
Stephan,
I read some years ago a suggestion that modern sailplanes were the ultimate example of "form follows function" and that if the design trends continued, you wouldn't be able to distinguish the different models.
So based on that, I suggest you just pick the LS, ASW or Schemp-Hirth model that appeals to you.
I know it is old, but my bias is towards the Standard Cirrus, mainly because I used to fly one. A world-beater in its time.
When you compare it with modern sailplanes, it is hard to believe the design is 40 years old.