You'll find Matjaz Klemencic's review here:

http://klemencicmatjaz.blogspot.com/2011/03/quick-brief-on-combat-135-gt.html

Having the glider on the shoulders it is very nice balanced. First
surprise you get with your first take off. The wing generates lift at a really
low speed so you are flying after just a step or two. The stall speed is slower
then with other models. This is going to be interesting to see it at work on
Cucco.

...

I can say you can feel it is more nervous in pitch, then 13,7 was, but lets not
forget, the 13,7 was a glider made to fly with out the tail, this one is not.
Still you fell very confident when you hit the turbulence as you can feel the
tail at work all the time.

Does this remind you of an ATOS? It does me. The ATOS is also nervous in
pitch, at least that's my opinion. The ATOS has an aspect ratio of 11.7 Vs. 8.5
for the Combat.