I'm wondering if it's worth it. It would be nice to have some other opinions here, especially from people who fly larger cameras. I've been using this on my DSLR-sized brushless CS gimbal, and while it works ok, it's pushing the limits for the gimbal motors. Also, I enlarged my CS8 to 500mm booms and 15" props, which only just barely squeezes into the car now. Shorter flight-times...etc. I've taken the camera apart and was planning to build a custom aluminum frame and carbon fiber shell, but now I'm not sure. The camera has three major sources of weight: the aluminum case, the lens mount sensor block, and the screen/battery. I have run my cinema camera without the screen plugged in, so I know it works, and probably works on the 4K too, and although it's pretty tricky, I think I could make a multi-plug that connects the screen, touchscreen, and buttons to the main board, as the touchscreen is the only way to adjust many functions, so you would need to be able to plug it in on the ground. The cool thing is, it would become a remote screen for other applications like car-mounting, and you could adjust the camera settings. (not sure how long the monitor connection could go before losing the signal) In the table below, you can see my estimated weight reduction to be 821 grams, or about 1.8 lbs off the original, making this a 2 lb 4K body. Is it worth it??? I know it would at least put it in range to work on the M5. (haven't checked if it would fit though.) The new frame would be quite a complex machining task, but at least I have the old one as a template.