Idea of Adding a Second Optical Flow Sensor to Recover Roll and Pitch Rates

[huttonsoftware]

I am thinking of having two optical flow sensors on a multicopter, with one canted away from nadir into X and the other into Y. Because the coefficients of the two sensors from translation and rotation rates are different, it should be possible to recover roll and pitch rates as well as translation from optical sensors and improve hovering performance. My question is, is this a worthwhile project? I would like to learn more about multicopter navigation and the ArduPilot codebase, and so I’m looking for a project to take on.