I went with the Novak. The Novak Ballistic is great because it is fully rebuildable and you can install various stators in one can. The Ballistic motor also has a good amount of torque and when geared properly is as fast as the Duo. There are really no downsides to the Ballistic motor, not to mention, it will match your 009!
As a side note, I also run the KO ESC and owned a 009.