Ventus 2c vs. 2cx

All -

I've spent a long time studying Schleicher aircraft; not as much
looking at S-H ships. Can anyone explain how much of a performance
difference there is between a V2c and a V2cx? I understand the
fuselage changed between the two; any major improvements or
innovations, or was the D2 fuselage just slightly better and easier to
manufacture? Any aerodynamic differences (other than the fuse) between
the 2c and the 2cx? Any comments on whether an "older" 2c is
competitive with an ASW-27 or other current 15m ships?

Thanks a bunch,

--Noel