Do you have a pitch gauge to check what pitch your main rotors are at, at half stick? You should be in the +4-5 degree pitch range at half stick to get the heli light on the skids. If memory serves me - the Honey Bee CP and CP2 don't have adjustable throttle/pitch curves with the basic radio they come with. If that is the case, you will have to adjust your pitch manually by adjusting the push rod lengths. Don't know enough about the HB CP to give you the exact procedure.
Does the motor seem to be at full speed? The other possibility is that you are not getting enough power from the motor - just a thought.
Cheers,
John
www.rchelicopterfun.com