Just for interest - lifted from the SH website news
section 25/10/2007:

'Duo Discus XL becomes certified for simple aerobatics!

The improved effectiveness of the airbrake system makes
it now possible for us to apply the approval for simple
aerobatics including spinning.'

John Galloway




At 14:01 01 November 2007, John Smith wrote:
Karl Striedieck wrote:

Is the 20 meter DG-1000 authorized for acro?

With 20m it's authorized for 'basic' acro, which means
Loops, Turns and
erect Spins. No rolls and no negative g.

With 18m it's authorized for full aerobatics.

If it is I'm curious about the
reason. Both ships were designed to meet JAR standards
regarding strength
and dive brake performance.

Because the dive brakes are *not* of equal strenght.
I've never compared
side by side, but the DG1000 definitely allows for
a much more sloppy
approach. (Not that I would advocate sloppy flying!)
I've read that you
compared them and think both are the same, I definitely
don't share your
opinion.