The other issue with the original question is that normalizing for wing loading is a theoretical comparison that gives a relative sense for how the aerodynamic designs perform, but most gliders have different min/max wing loading ranges so in the real world you might not end up apples to apples in terms of wing loading anyway. Also, the different glider designs will reflect optimizing for a different wing loading ranges. Load a V2 up to the min wing loading of a -27 and it's a very different comparison than both gliders with a 175 lb pilot dry.

Kind of depends what you intend to do with the analysis.

9B