"Well it is not that I have "Airframe-could-be-better-itis" it is more like "I-only-get-time-when-everyone-is-sleeping-so-make-no-sound-itis" and suffer from "why-did-you-spend-money-onthat-wifis" I here many people with little ones suffer from this…"
"You could try adding a few IR LEDs to help with the lighting/shadow issues. You might run into an issue of the LEDs creating a pattern that confuses the sensor (for this you could try frosting the LEDs with a nail file)"