To answer about the V3 larger but oddly named "performance" cockpit. The V3M cockpit has a great deal of length and average depth but is slightly on the narrow side for broad pilots. Overall it is not as roomy as the JS1 or ASH26 cockpit. Two very tall and proportionately broad friends found it two tight for them across the hips or shoulders. One of those has a Discus 2cT which he is fine in in spite of it only being 2cm wider across the inside of the upper cockpit rim - mostly accounted for by a thicker cockpit rim structure as it looks as if the external dimension is the same.