Totally, follow up with KK. Sadly, they just seem to have real difficulty with reliability of electronic gear. The Road Machine is amazing and I love mine. The idea of Inride is great, but their implementation just falls short.
If you head down the sensor road, I would be happy try and test in tandem with you, to see if we can figure it out. I can compare to any of my 3 power meters along the way too, and see if we can nail the hack.