Unfortunately, DRG itself does not determine the date of this event, we mostly participate in existing events.

Heavyweight demos are a robot in the arena which shows its power, possibly do some flips on its own, and scremec.

TAN for example demolished a computer and a pallet in Vilvoorde.
Tsunami make some test flips.

The Arena is not big enough for 2 heavyweight to have a combat safely. Some time's we do a non weapon demo combat.

But heavyweight demos are a good start of a new round, they make a lot of noise, people hear it and come over the the arena. For some of us its a good time to safely test a weapon. *(flipper, axe, crushers )