In my very unscientific attempt to get my H3-3D to work better with the new GoPro Hero 4 I am going to try to shave 10-14 grams off the camera. Armed with the very best analog food scale (Target, $5.29) I've managed to lose about 3g without harming the camera. I switch my camera often and have never been a fan of the semi-permanent mounting bar to hold the camera on the gimbal. I simply use a rubber band, which weights less than a gram. The two screws and bar weigh approximately 3g on my scale. If anybody has a digital scale handy I would appreciate a more accurate measurement. There are two locations I can see the GoPro can easily lose some weight: The battery compartment door, and the lens housing. I estimate the battery compartment door weighs in at 4g and maybe .5g for the lens housing. If my estimates are correct I've lost 6.5-7.5g at this point. Half way there! The next step is either to take the camera apart and identify any useless parts I can drop, and/or sand some of the plastic housing down. I'm wondering if anybody has tried this yet. If so what sort of weight loss were you able to achieve? I'm aware I could balance the gimbal to make it work a bit better with the added weight. However, I'm actually more comfortable with modifying the camera than adding more weight to the platform, small as it may be.