I have a couple of these Flight Controllers:
SP Racing F3 Micro 10DOF https://d3vs3fai4o12t3.cloudfront.net/media/attachment/file/HP-FCF3MICRO-MAN.pdfI've been using them quite successfully on quadcopters with INAV firmware. They're identical in function to the full-size SP Racing F3's, the only differences are size, weight, and connectors.. the Micro uses a TTL USB connection and JST-SH connectors, no header pins at all, and it runs the very same INAV firmware as the full-size F3. It is NOT the same as the Evo.
What are my chances of using this controller with Librepilot, either now or in the future? I'd be willing to do some testing, once I learn more about setting up a development environment and learning how to use it.