Linc, I wash thinking along the same lines as you on the duct in the begining but after a couple attemps I trimed it to just blow around the motor. Given enough time I'm sure it is possible but I didn't feel like investing that much effort into a half beat body. The other minor issue is when I do end up on the roof there is enough body flex that the tube gets pretty beat up. I used thined epoxy over the whole tube to help give it some strength and to water proof it, it helped but still not perfect.

Hope the firmware helps with your temps John, I ended up needing a small fan on the ESC to keep it comfortable. I really wanted to avoid a fan if I could.