I've already explained, together with ORS, the way UZR works on-site. I'm not going to explain it to you. I've also explained the reason why it's innacurate in the cases of SS and 1B, so your attempts of deflecting the question are ill-advised. Everyone here knows i understand how it works, do you?
I'll make it simpler: Why is it innefective, in your opinion, in the case of 3B?