I've just stripped an old #11 down to 6.7 grams to go on a micro quad:
The main weight saving is by running the camera off the quad's cell, at the moment though the camera shuts down at 2:20 although the quad doesn't show LVC till just over 6 mins. I will try some better cells that may drop less voltage under load - worst case it will easily handle the weight of a second cell just for the camera if nesc.
Only done a quick test indoors in dim light (worst conditions for a #11
) - pretty impressed with the lack of vibration. 30 second extract (turn the sound down - I must disconnect or tape over the mic