So, I carefully installed the Dome, reviewed video and written instructions multiple times, made my own cheat sheet that had print big enough for me to actually read, did it exactly as instructed, two thumbs on the sensor, the whole thing. Would hardly even accept thumbprints when I tried to reregister them, got each thumbprint once after many, many, many, many attempts (FPS was quick and easy and works 95% of the time on first press with original protector), gave up after about a hundred presses and never getting beyond 70% on second round of thumbprints. Will not unlock with sensor. I will pull off and try with the second one tomorrow, too PO'd right now, but for now I definitely would NOT recommend this.