Keep your Advantage2 planted as firmly as possible on your desk by adding additional weighting to the inside of the case. This will also help with the tone of the board (lowering the octave slightly).

Adds approximately 0.8-1.25lbs to the overall weight of the keyboard (depending on other upgrades)

Weights are adhered to the inside of the case, and then sealed and bonded to the plastic, and covered to prevent interference.