p.s. I like the look of the paddles, but don't need the lights; how do the paddles work with Your Grips? Are there advantages of stability with the paddles, or are they paddle shaped purely for aerodynamics in the CX-2 heli?
I like the lights a lot, especially when I am flying by night, though I do need to add some navigational LED's. I wish that there was a kit for that. I just don't have the time or patience to be building circuits from scratch anymore.
To answer your question, I have been told that the paddles with LED's and coin batteries weigh pretty much the same as the stock rubber bumpers with the brass weights. The shape of the paddles does nothing for the Heli aerodynamically that I can tell.