As far as I know the criticisms of the DuoDiscus related to
Cockpit space - particularly in the front.
Outlanding capability - effectiveness of airbrakes.
Unsprung and low clearance undercarriage

So Schempp-Hirth went away and improved the breed. Not least I am sure because
the DG1000 apparently had a better overall polar. (DGs test in 2000 was against
a Duo, not a Duo x...)

Despite the "x" being first flown in June 2005 and certified in February 2006 -
I have not found much reporting on the new improved Duo-Discus. Given the nature
of RAS I am sure I can get some opinions.

Has anyone flown the newest version of the Duo-Discus with it's bigger cockpit?
Who is prepared to comment on the relative success of the "x" modifications
(winglets and revised airfoils and landing flaps and sprung undercarriage).

Seems to me there would be more discussion on this , or do two seaters not
generate the same passion?

Is it better at XC?
Is it safer XC now?
Can the change in L/D be quantified (SH claim the same 1:45)