Hi!

If you have a combination of slope and thermal lift, Discus is the right answer. With it's polyhedral wings it sits very nice in turns with minimal height loss. In combination with the right airfoil section - as it is case with both Graupner models which use undercambered HQ/W 3-13 you have a winner for thermal flying. This airfoil is a very good compromise for aerobatic performance also.

You can affect the aerobatic potential with higer mass and therefore penetration, speed and inertia of your model. Discus has two ailerons on each wing, so it helps a lot that the outer aileron has larger control throw than the inner one. Of course basic aerobatics are possible, don't worry.

Discus is a great all-rounder, but if you need something for that "snappy" response, than you should consider something like Swift, Fox, Pilatus B4 and other scale ships. But you need much stronger lift to fly them. Both gliders - Discus and Swift on the top of the hill is the right answer.

Sašo