So here is my DemonRC Dojo.
I bought the frame with a DJI camera mount but i wanted to have more protection anyway so i designed my own, adding some TPU to prevent carbon fiber delamination.
AUW at 276g is not bad but i hoped for under 250g. Maybe with a 650mAh lipo that would be possible.
Anyway build was fun, frame has a lot of space so it's quite esy to fit everything. I also designed myself a VTX antenna holder and some PLA prints to hold Crossfire in place.
Maiden was with a 1500mAh 4s 180g lipo and did really well. Motors were cool despite the weight. Now with about 80g less and propper 850mAh pack it should be better.
I was hoping th stick a self powered buzzer but i didnt find any decent place for it. I modified my camera mount to adjust it for 25mm standoffs and i'll order some londer ones. With extra 3mm over the stack there should be a fine place for a 3g buzzer and a second lipo strap without even being close to FC/ESC/VTX stack (those extra 3mm will probably not destroy fight characteristics by moving GC a bit up). Overall fun stuff.

What might be called 'maiden' of this quad (with a 850mAh 4s pack):