When I saw the Ummagawd Acrobrat, it reminded me of a smaller version of the Catalyst Smooth Operator. The clean & dirty design with top and bottom isolated by soft grommets makes for surprisingly stable video for a 3" build. The flight controller soft-mount grommets in the frame works very well, in fact it flies great with stock pids which is unusaual for a 3" frame.
what do you think about these motors? What kind of flight times do you get?