Weights will give you stability and not much else, the reason for having actual airfoils on the paddles is to give the system a "power boost" when the cyclic is applied. You will end up reducing the cyclic authority of your helicopter significantly if you remove the paddles.

The paddles have weight, so the stability during hovering (minimal Cyclic inputs) comes from the weight of the paddles. As soon as a bigger cyclic input is given the paddles "grab" the air and the cyclic input is transferred to the blades.

You have been looking at Hueys for too long.

Just fly your heli the way it is...

Edit: This is a simplistic approach to try to present the situation, I'm pretty sure that somebody with more time and aeronautical knowledge will jump in here and argue some of my "presentation".

Rafael